Why do plants need to be specialized to survive in arid climates?

Answers

Answer 1

Answer:

Area receives little precipitation.

Explanation:

Arid climate is a type of climate that receives less than 25.4 cm of rainfall throughout the year. Desert climate is called as arid climates. Rainfall in arid climates is usually irregular but when rainfall occurs then it will be huge with thunderstorm. Many plants and animals found in that climate adopt themselves from rare rainfall and they remain inactive during most of time of the year and active only on the time when rainfall occurs.
Answer 2

Answer:

Area receives little precipitation

Explanation:

Edge nuity 2020


Related Questions

Which animal is one of only two mammals that lay eggs?


three-toed sloth


duck-billed platypus


wombat


chicken

Answers

Answer:

Duck-billed platypus

Answer:

duck-billed platypus, and echidna

Explanation:

stay woke, folk

What is the effect of iron levels on rate of cellular respiration?

Answers

Answer:

The effects of iron deficiency on cell culture growth, cell respiration, mitochondrial oxidative properties, and the electron transport chain were studied with suspension-cultured sycamore (Acer pseudoplatanus L.) cells. Iron deprivation considerably decreased the initial growth rates and limited the maximum density of the cells. Under these conditions, the cells remained swollen throughout their growth. The absence of iron led to a steady decline in the uncoupled rate of O2 consumption. When the uncoupled rate of O2 uptake closely approximated the respiratory rate, the cells began to collapse. At this stage, the level of all the cytochromes and electron paramagnetic resonance-detectable Fe-S clusters of the mitochondrial inner membrane were dramatically decreased. Nevertheless, it appeared from substrate oxidation measurements that this overall depletion in iron-containing components solely disturbed the functioning of complex II, whereas neither complexes I, III, or IV, nor the machinery involved in ATP synthesis, was apparently impaired in iron-deficient mitochondria. However, our results suggest that the impairment of complex II resulted in a strong reduction of the overall capacity of the mitochondrial electron transport chain, which was responsible for determining the rate of endogenous respiration in sycamore cells. Finally, this situation led to a depletion of various energy metabolites that could contribute to the premature cell death.

Explanation:

Final answer:

Iron levels are critical to the rate of cellular respiration due to their role in hemoglobin, myoglobin, and cytochromes, which are involved in oxygen transport and electron transfer. Abnormal iron metabolism, like anemia or iron overload, can lead to impaired cellular functioning and influence respiration efficiency. Maintaining proper iron levels supports optimal cellular respiration.

Explanation:

The effect of iron levels on the rate of cellular respiration is significant due to the role of iron in various biological processes. Iron is a critical component of hemoglobin, myoglobin, and cytochromes which are involved in oxygen transport and electron transfer within cells. Adequate iron levels are necessary for the efficient functioning of these proteins and hence, support optimal cellular respiration.

Abnormal iron metabolism, such as anemia or iron overload, can affect the cellular respiration rate. Low iron levels can lead to reduced oxygen transport to tissues, affecting ATP production during aerobic respiration. Conversely, iron overload can lead to oxidative stress and damage cellular components, impairing respiration efficiency. Moreover, in conditions like methemoglobinemia, where the iron in hemoglobin is oxidized from ferrous (Fe²⁺) to ferric (Fe³⁺), the oxygen-carrying capacity of hemoglobin is compromised, which can also impact cellular respiration.

Therefore, maintaining normal serum iron concentration and preventing abnormal deposition of iron in tissues are crucial for the proper function of cellular respiration pathways.

Why do you think people are willing to accept the costs as well as the benefits of using fossil fuels?

Answers

Answer:

because it is just easy that way

Explanation:

Order the events that occur during DNA replication

Answers

Answer:

Helicase unzips DNA to separate strands. Topoisomerase unwinds the coiled DNA. Primase lays down short RNA strands. Polymerase synthesizes new DNA strands. The new strands are glued using ligase.

Explanation:

DNA replication is the process responsible for forming new DNA molecules, through the action of several enzymes and a DNA molecule that will serve as a template for the creation of two molecules.

DNA replication is extremely important and happens whenever the cells go through a cell division process, since each new cell must contain its own DNA molecule.

It is important to note that DNA replication is a process that follows a specific order of steps that are coordinated by the action of the enzymes responsible for replication. The steps occur in the following order:

Helicase unzips DNA to separate strands. Topoisomerase unwinds the coiled DNA. Primase lays down short RNA strands. Polymerase synthesizes new DNA strands. The new strands are glued using ligase.
Final answer:

The events at the replication fork include helicase action, binding of single-strand binding proteins, primer synthesis, and synthesis of new strands. If the helicase gene is mutated, the unwinding process at the replication fork will be affected.

Explanation:Helicase action: Helicase unwinds the double-stranded DNA at the replication fork.Binding of single-strand binding proteins: These proteins coat the separated DNA strands to prevent them from reannealing.Primer synthesis: Primers, made of RNA, are synthesized to provide a starting point for DNA synthesis.Synthesis of new strands: DNA polymerase adds complementary nucleotides to the template strands, resulting in the synthesis of new DNA strands.

If the gene for helicase is mutated, it will disrupt the unwinding of the DNA at the replication fork, hindering the progression of replication.

1. DNA fragments from a gel are transferred to a nitrocellulose paper during the procedure called Southern blotting. What is the purpose of transferring the DNA from a gel to a nitrocellulose paper

Answers

After the previous processes, the DNA is blotted from the Agar Agar gel to nitrocellulose paper. This is done because in the next step, radioactive probe is added to the DNA fragments to make it visible in Xray film.

Explanation:

DNA finger printing is a very important process in Forensic medicine as DNA finger printing is the only 100% proof of one's identity.

In DNA finger printing, first the DNAs are taken in Agar Agar gel on one side and restriction endonuclease enzymes are applied that will cut the DNA in particular sequences. These cut pieces are then separated using gel electrophoresis. After the gel electrophoresis, the gel is then blotted on a nitrocellulose paper so that they can be washed and treated with radioactive probes that will get attached with the cut pieces of the DNA and make them visible in Xray film. Then this paper is put onto xray film and the pattern is noted.

Final answer:

Southern blotting involves transferring separated DNA fragments from a gel to a membrane to detect specific DNA sequences with a complementary DNA probe.

Explanation:

Purpose of Southern Blotting

The purpose of transferring DNA fragments from a gel to a nitrocellulose or nylon membrane during a Southern blot is to prepare the DNA for subsequent hybridization with a specific DNA probe. This technique enables the detection of specific DNA sequences within a complex DNA sample. The DNA fragments are first separated by size via gel electrophoresis. The transfer to a membrane makes the DNA accessible for hybridization, as the probe cannot effectively penetrate the gel and the gel itself is too fragile for handling during the hybridization steps.

The membrane-bound DNA is then denatured and incubated with a labeled probe that binds to the complementary sequence, if present. After washing away excess probe, the presence of the DNA sequence of interest is revealed by the probe's label, typically resulting in visible bands on the membrane.

What could happen if the average temperature increased in an ecosystem?


Some organisms would not be well-adapted to the higher temperatures.


Populations of all organisms would increase because of the higher temperatures.


Organisms would quickly adapt to the change.


All organisms would die because of the change.

Answers

Answer:

Some organism would not be well-adapted to the higher temperature.

Explanation:

Answer:

Some organisms would not be well-adapted to the higher temperatures.

DNA is made up of a series of subunits bonded together. These subunits are
made of three separate parts: a base, a sugar, and a phosphate group. What
are the subunits called?
O
A. Nucleotides
O
B. Cytosine
O
O
C. Nucleic acids
D. Deoxyribose

Answers

Answer:

is nucleotides this is answer

Answer:

the answer is a nucleotides

Mitosis is divided into phases.

A phase of mitosis is shown. The chromatids separate from each other and are being pulled to the opposite ends of the cell.

Which phase of mitosis is shown in the diagram?
anaphase
metaphase
telophase
prophase

Answers

The phase of mitosis shown in the diagram where chromatids separate from each other and are being pulled to the opposite ends of the cell is **anaphase.** The correct option is 1.

During anaphase, the centromere that holds sister chromatids together splits, allowing the chromatids to become individual chromosomes. These chromosomes are then pulled apart toward opposite ends (poles) of the cell by the contraction of spindle fibers. The movement of chromatids is facilitated by the shortening of microtubules within the spindle apparatus.

The key events of anaphase include:

1. **Separation of Sister Chromatids:** The chromatids, which are identical copies of each other, are separated as the centromere divides.

2. **Movement Towards Poles:** The separated chromatids, now individual chromosomes, are pulled towards the opposite poles of the cell by the spindle fibers. This ensures that each daughter cell will receive a complete set of chromosomes.

**Other Phases:**

- **Prophase:** This phase involves the condensation of chromatin into visible chromosomes, the breakdown of the nuclear envelope, and the formation of the mitotic spindle.

- **Metaphase:** During metaphase, the chromosomes align along the center of the cell, known as the metaphase plate. The spindle fibers attach to the centromeres of each chromosome.

- **Telophase:** In telophase, the separated chromatids (now chromosomes) arrive at the opposite poles and begin to decondense back into chromatin. The nuclear envelope starts to reform around each set of chromosomes, creating two distinct nuclei.

**Cytokinesis** follows mitosis and involves the division of the cell's cytoplasm and other organelles, ultimately producing two daughter cells.

In the diagram where chromatids are being pulled apart and moving towards the cell's opposite ends, it's indicative of **anaphase** of mitosis. This phase is crucial for ensuring that each daughter cell receives an identical set of genetic material.

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Answler:

label A = c

label B = B

label C = A

label D= DExplanation:

Why is genetics different from the other health factors?

Answers

Answer:

Other health factors include the social and economic factors, health behaviour and clinical care. These factors are distinct from the genetics of a disease.

A disease can be eliminated and cured if it is not a genetic disease. But most of the genetic diseases cannot be cured and their occurrence cannot be eliminated.

Genetic information is different from other information present on the health charts. Genetic factors involve genes for various health circumstances whereas other diseases may not have a specific concern with genes.

It is important for us to keep our water supply clean and chemically balanced, so that it is potable and we can drink it. Having the right pH level is a part of this. What pH level should drinking water have

Answers

Answer:

The pH level of drinking water must fall within the range, 6.5-8.5 because is neither acidic nor alkaline enough to be dangerous in the human body.

Explanation:

The pH level is an indicator of acid-base equilibrium, and shows whether a substance is acidic or alkaline. The pH scale ranges from 0-14, where a pH value of 7 means the substance is neutral. The levels less than 7 is considered as acidic and the levels greater than 7 is considered as alkaline.

The pure water has a pH value of 7. The normal pH range of surface water systems is 6.5 to 8.5, and that of groundwater systems is 6 to 8.5. According to EPA (Environmental Protection Agency) standards, the pH value of drinking water must fall within the range, 6.5-8.5 .This water is safe to drink as it is neither acidic nor alkaline enough to be dangerous in the human body.

Water having a pH value less than 6.5 is considered as soft and acidic, and it can be corrosive and filled with toxic metals while water with a pH value higher than 8.5 is hard and alkaline, and poses less of a health risk than acidic water but can taste bad and leave scale deposits on dishes, sinks etc.

examples of independent variable​

Answers

Answer:

A variable can be described as anything which we are trying to measure. In an experiment, there are two variables:

Independent Variable: Independent variable is a variable which changes on its own or changed by us during an experiment.

Dependent variable: Dependent variable is the variable which is under observation.

Two common examples of independent variable are time and age. Time and age keep changing and they are not influenced by any other factor.

Consider this animal cell.
Which organelles are labeled G?

Answers

Answer:

In the animal cell the organelles that is  labelled G is mitochondria.

Explanation:

Mitochondria are the membrane bound organelles with inner membranes folded inside which can form finger like structures called cristae. There numbers are more in the cell. They are basically responsible for the production of the energy, hence called as the power house of the cell. They also perform the cellular respiration, which means it takes the nutrients from the cell breaks it and makes energy from it. This energy is used by the cell to carry out various life processes.

Water droplets sticking to spider webs is caused by the same property that caused a water droplet to stick to your finger in your lab. What property of water is responsible?

Question 15 options:

capillary action


surface tension


cohesion


adhesion

Answers

Answer:

adhesion

Explanation:

Its just like Water drops on a pine needle or on anything else, Cohesion is when water is attracted to water. Therefor its Adhesion, because that's when water is attracted to other things or substances.

Answer:

Its adhesion

Explanation:

Its just like Water drops on a pine needle or on anything else, Cohesion is when water is attracted to water. Therefor its Adhesion, because that's when water is attracted to other things or substances.

Why would a farmer fertilizing his field on a hillside concern a fisherman that works on a lake kilometres away?

Answers

Answer:

This is due to the farm runoff, or fertilizer run off

Explanation:

Various fertilizers like nitrogen and phosphorus are very essential for plant growth but it also increases the chances of the algal growth in the water bodies when washed away. This happens when intense rainfall occurs and washes away the nutrients and chemicals to the lakes, and many water bodies that has not been taken by the plants. these chemicals and nutrients affects the aquatic ecosystem. Due to toxicity various fishes die, hence a threat to the fisherman.

compare and contrast glaciers and sea ice

Answers

The most basic difference is that sea ice forms from salty ocean water, whereas icebergs, glaciers, and lake ice form from fresh water or snow. Sea ice grows, forms, and melts strictly in the ocean. Glaciers are considered land ice, and icebergs are chunks of ice that break off of glaciers and fall into the ocean.
Final answer:

Glaciers and sea ice are both forms of frozen water but have distinct characteristics and locations. Glaciers form on land and flow slowly downhill, while sea ice floats on the surface of the ocean and does not flow continuously.

Explanation:

Glaciers and sea ice are both forms of frozen water, but they have distinct characteristics and locations.

Glaciers are large bodies of ice that form on land and flow slowly downhill due to gravity. They are found in high-altitude or high-latitude areas, such as mountains and polar regions.

Sea ice refers to frozen seawater that floats on the surface of the ocean. It forms in polar regions during winter and melts during summer. Unlike glaciers, sea ice does not flow continuously.

Comparison:

Both glaciers and sea ice contain frozen water.They are influenced by temperature and seasonal changes.Both play a role in Earth's climate system.

Contrast:

Glaciers are found on land, while sea ice is found on the surface of the ocean.Glaciers flow slowly downhill, while sea ice does not flow continuously.Glaciers can carve landscapes and form valleys, while sea ice does not have this impact.

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After injecting the mice with both bacteria, what question did Griffith ask him self

Answers

Answer:

Griffith performed an experiment on the mice to test two different strains of bacteria. One of them was virulent and the other was non virulent. The result depicted that the non virulent strain transformed into virulent strain through the process of transformation.

Explanation:

Different mice were injected with different combination of strains. One of the strain was a virulent one, III-S and the other one was II-R which was non virulent. Both the strains were taken from Streptococcus pneumoniae. The following observations were made:

1. In the first mice only simple III-S was introduced. The mouse died.

2. In the second one, heat killed III-S was injected. The mouse survived as the virulent portion was killed.

3. In this one II-R was introduced. Since it was an non virulent strain, the mice did not die.

4. In this he added both heat killed III-S and II-R. The mouse died and this perplexed Griffith. He wondered what had happened since the non virulent form and heat killed virulent form should have not harmed the mice.

Later he found out that the DNA of the Heat killed III-S was imbibed by the II-R form. The bacteria had 'transformed' and as a result the mice died.

Plz help I will give brainliest

Answers

Answer:

Proteins: used in facilitate transport across membrane

Carbohydrates: used to drive cellular respiration

Lipid: composes the cell membrane

Nucleic acid: used to create identical daughter cells in mitosis

Explanation:

A. In the cell membrane, transport proteins or channels are present which selectively allow the transfer of molecules. This is why the cell membrane is also known as a selectively permeable membrane.

B. In cellular respiration, which takes place in mitochondria, glucose (carbohydrate) is used to generate ATP molecules.

C. The cell membrane is composed of a lipid bilayer that contains protein channels. This makes the membrane insoluble in water and maintains the integrity of the cell.

D. The nucleic acid is the hereditary material that can replicate and transfer genetic information to the next generation.

What type of cell has larger vacuoles a. archaea b. plant c. animal d. fungi

Answers

Answer:

Plant cell has larger vacuoles.

Explanation:

Vacuole is a fluid filled structure found in cells of the plants, certain animals, protists, fungi, bacteria etc. Vacuoles found in plant cells are larger than that in animal, protist, fungal, and bacterial cells. The vacuole inside a plant cell stores water. It also helps to maintain the turgor pressure of the cell. The functions of the vacuole include isolating materials that might be harmful to the cell , maintaining an acidic internal pH ,  supporting the plant structures such as leaves and flowers.

Answer:

the plant cell

Explanation:

What are the parts of ants??

Answers

Answer:

Head. An ant's head is the sensory capital of its body. ...Thorax. The thorax, also called the mesosoma, makes up the middle of an ant's bodyPetiole. In between the mesosoma and the gasterAbdomen. Exoskeleton.

hope it helps answer the question:)

Defenetions of pedical,thalamus,calyx,epicalyx,corolla/petals, stigma,anther, filament,style and ovary.these are parts of a flower.

Answers

Answer:

pedical. a small stalklike structure connecting an organ

thalamus. is a small structure within the brain

calyx. sepal of a flower

epicalyx. is a group of bract resembling calyx

petals. they sorround the reproductive parts of flower

stigma is a part of the female reproductive system

anther the part of a stamen that contains the pollen

filament. support anther where pollination takes place

ovary where fertilisation takes place

Answer:

All are the part of a flower- Pedicel, calyx,thalamus, corolla, epicalyx, stigma,style, anther, filament, ovary.

Explanation:

PEDICEL- Pedicel is small stalk through which flower attached to the plant or to the inflorescence.

THALAMUS- It is the swollen axis on which flowers attached. It is oval n swollen. All the 4 whorls of flower embedded on thalamus.

CALYX- Calyx is green colored small leaf like structure attached to the base of the flower. Usually calyx detached from flower . Some calyx are persistent. They remain attached with fruits. Example-  Tomato, chilies, capsicum, brinjal and lady's finger.

EPICALYX- It is similar to calyx. It forms another whorl down to the calyx. It is leaf like structure smaller than calyx.

COROLLA- Corolla is the colored part of the flower. It is also known as petal( singular). It can be big to small depending on flower. It is brightly colored to attract insects for pollination. Its different color is due to presence of chromoplast.

STIGMA- Stigma is the part of reproductive structure in flower. For fertilization pollen should reach in ovary  to fuse. Through stigma pollen reach to the ovary. This is the surface pollen set to get entry inside ovary.

STYLE- Style is the passage to transfer pollen from stigma to ovary. It is a tube like structure connecting stigma with ovary.

OVARY-Stigma, style with ovary are female reproductive organ of a flower.Ovary contains ovules. It is the place of fertilization of ovule with pollen.

ANTHER-Stamen is the male part of flower. Stamen has two parts - filaments and ANTHER. Anther is oval shaped structure. In anther pollens are filled.

FILAMENT-The slender stalk connecting anther to the base is filament. Filament provides support to anther.

Match the computer discipline with its description? Focuses on developing software that is reliable, efficient, affordable, user-friendly, and scalable. Focuses on the design of the computer hardware and peripheral devices, often at the chip level. More of a business career that focuses in applying computers to business problems. Focuses on computer architecture and how to program computers to make them work effectively and efficiently. Focuses on computer equipment and software used by businesses and how they work, are secured, upgraded, maintained and replaced. 1. Computer Engineering 2. Computer Science 3. Information Systems 4. Information Technology 5. Software Engineering

Answers

Explanation:

Software Engineering:

Focuses on developing software that is reliable, efficient, affordable, user-friendly and scalable

Computer Engineering:

Focuses on the design of the computer hardware and peripheral devices, often at the chip level

Information systems:

More of a business career that focuses in applying computers to business problems

Computer Science:

Focuses on computer architecture and how to program computers to make them work effectively and efficiently

Information Technology:

Focuses on computer equipment and software used by business and how they work, are secured, upgraded, maintained and replaced

The computer discipline with its description include the following below:

Software Engineering: Focuses on developing software that is reliable, efficient, affordable, user-friendly and scalable

Computer Engineering:Focuses on the design of the computer hardware and peripheral devices, often at the chip level

Information systems:More of a business career that focuses in applying computers to business problems

Computer Science:Focuses on computer architecture and how to program computers to make them work effectively and efficiently

Information Technology:Focuses on computer equipment and software used by business and how they work, are secured, upgraded, maintained and replaced

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what is the importance of the mitosis​

Answers

Answer: See explanation.

Explanation: It plays an important part in the development of embryos, and it is important for the growth and development of our bodies as well. Mitosis produces new cells, and replaces cells that are old, lost or damaged.

Do some research online to determine what seafood in your state might not be safe to eat and explain what problems are common in your region that arise from eating that particular seafood.

Answers

Answer:

In India, in West Bengal, the shrimp found in a particular river were not deemed healthy to be eaten.

Explanation:

All water bodies have their own food chains and ecosystems. So basically in aquatic ecosystems, lot of marine animals are considered edible. The examples are fish, shrimp, prawn, lobster, crabs , etc are cooked and eaten.

Larger fish have a tendency to eat smaller fish. Anything that the smaller fish eats goes into the stomach of the larger fish and gets accumulated. Due to large industries not dumping their waste properly, lot of it falls into the water bodies. The waste contains toxic minerals like lead and mercury which when eaten by humans can cause poisoning.

Lead poisoning can cause loose motions, vomiting, cramps and infection in the abdomen etc.

Which of these are healthy dating norms? Select the two correct answers.
D
A. One person on a date shouldn't let the other person talk.
O
B. Each person should be respectful of the other.
O
C. A group of boys and girls can go out together.
O
D. Only a boy can ask a girl out.​

Answers

The answers are B and C because the other 2 are unhealthy

The healthy dating norms are :

B. Each person should be respectful of the other.

C. A group of boys and girl  can go out together.

Explain the term relationship?

Being in a relationship should not be a mandatory requirement for you to feel complete.

But for a relationship to be worthwhile, it needs to bring things that complement you, allowing you to be an even better version of yourself. In short, this relationship needs to be healthy.

Thus, option "B and C " are correct.

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what is a renewable resource and a non renewable resource?

Answers

Answer:

Renewable and Non-renewable resources are discussed below:

Renewable energy: are those energy that can be used again and again and it re-new after a short period of time. it is generally defined as that kind of energy resources that can be renewed naturally.

Renewable sources of energy can replace conventional sources of energy which produce harmful gasses which is harmful as well as costly.

Non-renewable: resources are those resources which can not be re-use or re-produce it is one-time use only and it takes a long period of time get re-produce,

Non-renewable sources of energy are also not good for the environment burning fossil fuels harm our environment.

Final answer:

Renewable resources, like sunlight and wind, are replenished naturally and are in endless supply, while nonrenewable resources, like fossil fuels and minerals, exist in fixed amounts and can be used up.

Explanation:

Renewable resources are those that can be replenished by natural processes at the same rate as they are consumed by humans. Examples of renewable resources include sunlight, wind, and the rising and falling of ocean tides. These resources are essentially in endless supply and can also be considered sustainable when used in a manner that doesn't prevent future generations from meeting their needs. Sustainable examples include sustainably harvested wood, cork, bamboo, and certain agricultural crops.

Conversely, nonrenewable resources exist in fixed amounts and can be depleted. These resources, such as fossil fuels (petroleum, coal, and natural gas), are formed over millions of years and therefore cannot be replaced as quickly as they are used. Other nonrenewable resources include precious metals and minerals. With the current rate of consumption, resources like petroleum and coal could be exhausted within a few decades or a few hundred years, respectively. Nuclear power is also considered nonrenewable due to the finite nature of uranium and the production of harmful wastes.

Understanding the difference between renewable and nonrenewable resources is essential for sustainable management and the development of alternative energy sources, which often utilize renewable resources to replace fossil fuel use.

A ___ is a kind of lipid that can store energy for a long period of time. These lipids are made up of long chains of carbon and oxygen atoms bonded to a backbone structure.

Answers

Answer:

chlorophyll

Explanation:

A Triglyceride is a kind of lipid that can store energy for a long period of time.

Triglycerides are a type of lipid that can store energy for an extended duration. They consist of long chains of carbon and oxygen atoms bonded to a glycerol backbone structure. These molecules serve as the primary form of energy storage in the human body and many other organisms. Each triglyceride molecule contains three fatty acid chains attached to the glycerol backbone. The carbon-carbon and carbon-hydrogen bonds within these fatty acids store a significant amount of chemical energy, which the body can access when needed.

When an organism requires energy, enzymes break down triglycerides into their constituent fatty acids, releasing energy for cellular processes. Excess triglycerides can be stored in adipose tissue, contributing to body fat. While triglycerides are vital for energy storage, elevated levels in the bloodstream can be associated with health issues, such as obesity and heart disease.

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what are alleles I a and I b

Answers

Answer:

The alleles I a and I b are the alleles that works for identifying unique antigen.

Explanation:

These alleles are generally found as deposition on the surface of the red blood cells. Again, these antigens are different form made from one protein. The Ia and I b alleles are found to be co-dominant and allele i is recessive. In human beings three different alleles are there, Ia, I b and I. The alleles are nothing, but a form of gene. Many genes are there having different function but are present in the same position. Humans are diploid, hence have two allele, each from one parent it has been inherited.

About three billion years ago, single-celled organisms called cyanobacteria lived in Earth’s oceans. They thrived on the ocean’s abundance of _____ , which they used during the process of photosynthesis. Much later, this process allowed organisms, such as fish, to survive by extracting dissolved _______ from ocean waters.

Oxygen

Carbon Dioxide

Nitrogen

both blanks need to be filled.

Answers

About three billion years ago, single-celled organisms called cyanobacteria lived in Earth’s oceans. They thrived on the ocean’s abundance of carbon-di-oxide , which they used during the process of photosynthesis. Much later, this process allowed organisms, such as fish, to survive by extracting dissolved oxygen from ocean waters.

Explanation:

Cyanobacteria is the bacteria that is primitive form of bacteria that used to be first organisms even before the present day bacteria came into existence. They were able to do photosynthesis.

Cyanobacteria used the huge concentration of carbon dioxide that was mixed with the sea water. This carbon dioxide was picked up by millions of cyanobacteria that converted the carbon dioxide into useful glucose and other products and valuable oxygen. Thus oxygen came in earth and that was used by future organisms for respiration.  

Final answer:

Cyanobacteria thrived on carbon dioxide in the oceans and through photosynthesis, they released oxygen, which later life forms needed for survival. Therefore, the first blank in the statement should be filled with 'carbon dioxide', and the second one with 'oxygen'.

Explanation:

About three billion years ago, single-celled organisms called cyanobacteria lived in Earth's oceans. These cyanobacteria thrived on the ocean's abundance of carbon dioxide, which they used during the process of photosynthesis. Through photosynthesis, cyanobacteria were able to convert carbon dioxide and sunlight into glucose, a form of energy, and oxygen. This release of oxygen into the oceans made it possible for other life forms, like fish, to survive by extracting dissolved oxygen from ocean waters. Thus, the first blank in your statement should be filled with 'carbon dioxide', and the second one with 'oxygen'.

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please help!!!! very confused pt 2

Answers

Answer:

If the genotype of the parents are Iᵃi and Ii, then four type of offspring will be produced.The genotype of the offspring are, IᵃIᵇ, Iᵃi,Iᵇi, and ii.

Explanation:

IᵃIᵇ = As the alleles are co-dominant in nature, so both type of alleles are expressed. The blood group will be AB. So, both A and B type of antigen will be found in plasma membrane of RBC.

Iᵃi= In this type of genotype only A type of antigen will be expressed in the membrane of RBC. The blood group will be A type.

Iᵇi= In this type of genotype only B type of antigen will be expressed in the membrane of RBC. The blood group will be B type.

ii= This is a recessive type of genotype. So, no antigen will be found on the membrane of the RBC. And the blood group will be O type.

The offspring's ratio will be 1:1:1:1.

If the velocity of a sound wave remains constant and its frequency increases, which characteristics of the wave will decrease?

A. energy

B. speed

C. amplitude

D. wavelength

Answers

Answer:

Option C is correct

Explanation:

Wavelength of the sound waves varies inversely with respect to frequency which means that if frequency increases wavelength will decrease and if  frequency decreases wavelength increase.

Mathematically this relation can be represented as -

[tex]W \alpha \frac{1}{f}[/tex]

Where W represents the wavelength and f represents the frequency

When frequency is constant, wavelength exhibit direct proportionality relationship with speed.

Answer:

the answer to this question is the letter C

Explanation:

Other Questions
The business college computing center wants to determine the proportion of business students who have personal computers (PC's) at home. If the proportion differs from 25%, then the lab will modify a proposed enlargement of its facilities. Suppose a hypothesis test is conducted and the test statistic is 2.4. Find the P-value for a two-tailed test of hypothesis. Which of the following facts did your answer include? If a driver speeds in a construction zone where workers are present, the speeding fine may be ____. GDP is defined as: a. the sum of all currency and coins in circulationb. the value of all final goods and services produced by a government c. the value of all final good and services produced anywhere in the world by a nation's firmsd. the value of all final goods and services produced domestically The commercial for the new Meat Man Barbecue claims that it takes 10 minutes for assembly. A consumer advocate thinks that the claim is false. The advocate surveyed 50 randomly selected people who purchased the Meat Man Barbecue and found that their average time was 11.2 minutes. The standard deviation for this survey group was 3.1 minutes. What can be concluded at the 0.05 level of significance?H0: mu.gif= 10Ha: mu.gif [ Select ] [">", " An international polling agency estimates that 36 percent of adults from Country X were first married between the ages of 18 and 32, and 26 percent of adults from Country Y were first married between the ages of 18 and 32. 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The ios:: _______file access flag indicates that output to the file will be written to the end of the file.5. _______ files are files that do not store data as ASCII characters.6. The ______ member function moves the write position of a file.7. The __________function can be used to send an entire record or array to a binary file with one statement.8. The______>> operator_______any leading whitespace.9. The ________ function "looks ahead" to determine the next data value in an input file.10.The ________ and __________ functions do not skip leading whitespace characters. What di eukaryotes most likely evolve from?O A DNAO B. Prokaryotesc Molecular potionsOD Bacteria Take a shiny soup spoon and look at your reflection in the side that holds the soup. What does it look like? Can you explain this, using the terms "angle of incidence" and "angle of reflection"? Now turn the spoon over and look at your reflection in the back of it. What does it look like now? The steel ball rolls 2,862 meters in 347 seconds twords the south.what is the steel ball velocity Steam Workshop Downloader