nematocyst is the answer
Assignment:
Show the punnett square and phenotypic ratios for the following crosses:
1) Both the father and mother have type O blood.
Phenotypic Ratio:
What the answer
The phenotypic ratio for the cross of two parents with type O blood is 100% offspring with type O blood since both parents have the genotype ii. A Punnett square would show all offspring as 'ii', representing type O blood.
Explanation:The question is asking to show the phenotypic ratios for a cross where both parents have type O blood using a Punnett square. Blood type O is represented by the genotype ii because type O is a recessive trait. Since both parents have type O blood, the genotype for each parent would be ii. Setting up a Punnett square:
Parent 1All offspring will have the genotype ii, which corresponds to type O blood. So the phenotypic ratio for this monohybrid cross is 100% type O blood type offspring. No other blood type is possible from this cross.
Which of the following are examples of biotic factors? Choose ALL that apply. bacteria
grasses
water
fungus
Answer:
Grass, bacteria, and fungus.
Explanation:
All of those things are living, making them biotic factors. Water is an abotic factor, as it is not living.
The earth’s mantle is different from the outer core because the mantle is
Answer:
Mantle is composed of rocks where as core is composed of metals.
Explanation:
Mantle and core both are part of the earth's crust. Though there have a difference between them- The mantle is consists of semi solidified rocks and core is consists of hot metals like iron and nickel. Core is the inner most layer surrounding the earth's center. The portion of the interior beyond the crust is called mantle. The core is the densest layer of the earth with its density ranges from 9.5-14.5 g/cm^3 where the density of mantle varies between 2.9-3.3 g/cm^3.
using the process of bacterial transformtion, a student reseacher inserted a plasmid containing a gene for antibiotic resistance into e coil. which result will allow the student to conclude that the insertion was sucessful ?
Transfer of newly created plasmids to e coli. The bacteria that contains a plasmid with antibiotic resistance will grow in the presence of antibiotic concludes that the insertion was successful.
Explanation:The plasmid DNA that contains the foreign DNA when integrated with the competent bacteria which is e coli and heated, plasmid DNA will be entering into the bacteria by means of some smaller pores that are created in the membranes of the cell.
The plasmid DNA will be copied many times with the help of the replicating mechanism of DNA of the bacteria. Bacteria will grow on a nutrient rich food called agar after the transformation process. Those bacteria that contains a plasmid containing antibiotic resistance only grow in the antibiotic presence. Transformed bacteria will then grow in larger quantity.
Will give brainliest plz help I only need help with the 2nd question
Answer:
Secondary Consumers
Explanation:
If the larvae eat the needles, they are the primary consumers and herbivores. Because they eat the larvae, the birds become the secondary consumer. Tertiary consumers are at the top of the food chain, and eat secondary consumers and primary consumers. Primary producers are energy producing things like plants, etc.
Where are the protein
channels that are used during
facilitated diffusion located?
A. outside the cell
B. inside the nucleus
C. inside the cell membrane
Protein channels used in facilitated diffusion are located in the cell membrane and include channel proteins and carrier proteins that help ions and molecules to cross. Hence, the correct option is C.
The protein channels that are used during facilitated diffusion are located within the cell membrane, which acts as a barrier between the interior of the cell and the external environment. These channels consist of two main types of proteins: channel proteins and carrier proteins. Channel proteins form pores in the membrane that allow specific substances to pass through based on size and charge, while carrier proteins selectively bind substances on one side of the membrane, change shape, and then release the substance on the other side.
Which of the following activities is
powered by ATP?
A. muscle contractions
B. active transport
C. Both a and b are correct.
Muscle contraction and active transport, both activities require ATP. Hence, option C is correct.
What is ATP?ATP stands for adenosine triphosphate. It is the energy currency of our body. It is produced in mitochondria during the process of cellular respiration and it is required by our body for many biological processes like muscle contraction and active transport.
In muscle contraction, the role of ATP is to break the myosin-actin cross-bridge and to release actin from this bridge for the next contraction. It also reduces myoplasmic calcium level during muscle relaxation.
In active transport, the cell needs energy for moving molecules against a concentration gradient (from high concentration to low concentration).
Both activities require ATP. Hence, option C is correct.
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Final answer:
ATP is essential for both muscle contractions and active transport processes in cells, highlighting its role as an energy source.
Explanation:
The question Which of the following activities is powered by ATP? refers to the roles of adenosine triphosphate (ATP) in biological processes. ATP is crucial for various cellular activities, including muscle contractions and active transport. Muscle contractions occur when ATP is hydrolyzed to ADP and phosphate, which facilitates the power stroke necessary for muscle fibers to slide past each other. On the other hand, active transport, including both primary and secondary active transport, requires ATP either directly or indirectly to move substances across cell membranes against their concentration gradient.
The correct answer is C. Both a and b are correct. This indicates that both muscle contractions and active transport processes are powered by ATP, showcasing its essential role as an energy currency in cells.
Which statements best describe monsoons? Select 3 correct choices
Answer:
Deadly, Wet, and Dangerous
Explanation:
this can be memorized by repeating to yourself DWD
Answer: deadly,wet, and dangerous
Which of the characteristics of life is displayed by the following statement: "When you step out into the cold, your body shivers in order to keep its temperature at 98.6F." Question 7 options: All living things maintain homeostasis. All living things contain cells. All living things grow.
Answer:
The answer is "All living things maintain homeostasis." Homeostasis is the process of maintaining equilibrium and balance in the body in relation to the various cellular processes.
Explanation:
There are 7 characteristics of life:
A body should grow and change.A body should react to the external environment.It should have the capacity to reproduce.A body should be made up of cells.A body should be capable of passing traits to its offspring.It should have a metabolic system and should be able to breathe.It should have the capacity to maintain homeostasis.Homeostasis is responsible for the maintenance of variables like core temperature, glucose, iron level, oxygen level,pH, cerebrospinal fluid, etc. Humans and mammals regulate their temperature through allostasis. In case of extreme cold, the blood supply to the body is reduced through vasoconstriction. In case of high temperature, the sweat glands are activated which allow the body to cool down.
The characteristic of life displayed by the statement "When you step out into the cold, your body shivers in order to keep its temperature at 98.6F" is all living things maintain homeostasis. Correct Option is 1.
Homeostasis refers to the ability of living organisms to regulate and maintain a stable internal environment despite changes in the external environment. In the given statement, the body's response of shivering to maintain its temperature at a specific level (98.6°F) demonstrates the process of homeostasis. Shivering is a physiological response that generates heat and helps to counteract the cooling effect of the cold external environment, thereby maintaining the body's internal temperature within a narrow range. This is a vital characteristic of living organisms to ensure their proper functioning and survival.
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Which flow chart best shows the relationship between the cell structures that are listed? gene Right-arrow DNA Right-arrow chromosome Right-arrow nucleus gene Right-arrow chromosome Right-arrow DNA Right-arrow nucleus DNA Right-arrow gene Right-arrow chromosome Right-arrow nucleus DNA Right-arrow chromosome Right-arrow gene Right-arrow nucleus
Answer:
Gene- DNA - Chromosome- Nucleus
Explanation:
A gene is a sequence of nucleotide bases that specifies certain products; RNA or proteins. It is the segment of DNA that holds the information to build and maintain an organisms cell and also pass genetic traits to offsprings. Hence, it is the molecular unit of heredity in living organisms.
The DNA is a long double-helical structure that stores the genetic information in our cells. It consists of two long polynucleotide chains composed of the four nucleotides subunits (A,C,G,T).
In order for the long strand of DNA to fit into the cell's nucleus, it is coiled around certain proteins called HISTONES to form Chromatin, which undergoes further coiling and organization to to linear CHROMOSOMES.
The chromosomes are structured within the nucleus, that are made up of the cell's genetic material (DNA). In eukaryotic cells, the nucleus houses the cell's DNA and directs protein synthesis (expression of the information encoded by genes).
The accurate flow chart should demonstrate the progression from gene to DNA, then to chromosome, and finally to nucleus. This reflects the hierarchical structure of genetic material within a eukaryotic cell, from the specific segments coded by genes, to the compaction of DNA into chromosomes, located within the nucleus for gene expression.
The correct flow chart that shows the relationship between the cell structures listed should reflect the hierarchical organization of genetic material within a eukaryotic cell. It begins with the most fundamental unit, the gene, which comprises a segment of DNA coding for a particular protein or function. This DNA is organized into structures called chromosomes, which are found within the nucleus of the cell. Therefore, the accurate flow reflects this progression: gene Right-arrow DNA Right-arrow chromosome Right-arrow nucleus.
This is also supported by the fact that a gene is a specific locus on the DNA sequence that codes for a particular trait, and many genes are located on a single chromosome. These chromosomes, made of DNA wrapped around histone proteins, then form the genomic content within the nucleus of the cell. The structure and organization of chromosomes ensure that DNA is compacted yet accessible for gene expression.
The relationship between these cellular structures is crucial for understanding genetics, cell biology, and the processes of gene expression and regulation.
Humans need certain substances to make new cells and repair their tissues. Humans acquire these substances by eating nutritious foods. Which of the following characteristics of life do the above statements best support? A. Living organisms respond to changes in their external environments. B. Living organisms use matter and energy for their life processes. C. Living organisms regulate their internal environments. D. Living organisms must be able to reproduce to promote their species' survival.
Answer:
B. Living organisms use matter and energy for their life processes
Answer:
The answer is B. Living organisms use matter and energy for their life processes
Explanation:
Its the correct answer trust me
6. What is the KINETIC ENERGY of the 6kg cart if it is moving at a speed of 2 m/s at the
bottom of the ramp?
300 ml
500 m
400 m
A. 10)
B. 100
C. 12 J
D. 120 J
Answer:
The Kinetic energy of the 6kg cart moving at a speed of 2 m/s at the bottom of the ramp is 12 J
Explanation:
Given:
Mass of the cart = 6 kg
Speed with which the cart is moving = 2 m/s
To Find:
The Kinetic Energy = ?
Solution:
The Kinetic Energy of the object is given,
[tex]K.E= \frac{1}{2} m v ^2[/tex]
where
m is the mass of the object
v is the velocity of the object
Now substituting the given values
The Kinetic energy of the 6kg cart moving at a speed of 2 m/s is
[tex]= \frac{1}{2} m v ^2[/tex]
[tex]= \frac{1}{2} (6) (2)^2[/tex]
[tex]= \frac{1}{2} (6)(4)[/tex]
[tex]= \frac{1}{2}\times (24)[/tex]
[tex]= \frac{24}{2}[/tex]
= 12 J
Hector used a conversion table to make calculations in a study of ocean evaporation relative to illuminance (light intensity). What
was the table for?
to find locations for his study
to work out details such as what equipment to use
to convert scientific terms such as evaporation and illuminance
O to convert English measurements into metric ones
Answer:
The conversion table was used to convert English measurements into metric ones.
Explanation:
The metric system (International System of Units) is the most common system that is recognized internationally for the measurements of mass, length, temperature, time, electric current, luminous intensity etc. This system includes the kilogram (mass), ampere (electric current), second (time), meter (distance or length) etc.
English System of Measurement ( imperial system) is the measurement system defined in the British Weights and Measures Act of 1824, and used across the British Empire earlier. This system includes units such as gallons, feet, miles, pounds etc.
14. What is the primary purpose of cellular respiration? a. To use sunlight to produse food molecules b. To release energy from food molecules c. To remove carbon dioxide from an organism d. To bring oxygen into an organism
Answer:
The primary purpose of cellular respiration is to release energy from food molecules.
Explanation:
All organisms obtain the energy for their functioning, from the food they consume. Cells in the body of the organisms produce this energy by converting the energy stored in the food nutrients into a more usable form called adenosine triphosphate (ATP), which will release energy when the need arise. This process is known as cellular respiration. Some prokaryotic organisms use anaerobic respiration (oxygen not required), while others use aerobic respiration (oxygen-requiring) for energy production. In aerobic respiration, ATP is produced by the breaking down of glucose and oxygen into carbon dioxide and water. Mitochondria in the eukaryotic cells are responsible for this process, so they are called the powerhouses of the cell.
In a living organism, the food and nutrient get broken into smaller molecules that produce energy for the cell functioning by the process of cellular respiration.
The correct answer is:
Option b. To release energy from food molecules.
This can be explained as:
The organism consumes food to gain energy from different sources. This food gets processed and broken into molecules to release energy.The energy stored in the food molecules is converted to usable form by the cell called ATP.In the presence of oxygen, glucose breaks into the water, carbon dioxide and ATP molecules.The process of cellular respiration occurs in the mitochondria of the cell.Therefore, cellular respiration is a process in which energy is released from the food molecules.
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which statement best describes some protein molecules in a cell?
a)proteins are long, folded chains that can form various cell parts
b)proteins are composed of four different starches that direct cell activity
c)proteins are long, twisted strands of glucose that regulate cells
d)proteins are genetically diverse substances that are synthesized in the nucleus
Answer:
A is the answer of this question
The best description for protein molecules in a cell is that they are long, folded chains of amino acids that can form various cell parts. They perform numerous roles within the cell due to their array of structures and shapes.
Explanation:The statement that best describes some protein molecules in a cell is: proteins are long, folded chains that can form various cell parts (option a). Proteins are indeed composed of chains of amino acids which fold into complex three-dimensional shapes. These varying shapes and structures enable proteins to fulfill a wide variety of roles within the cell, from being part of the cell's structural framework to acting as enzymes catalyzing biochemical reactions. In contrast, options b, c, and d are inaccurate descriptions. Proteins are not composed of starches or glucose, nor are they synthesized in the nucleus. Instead, protein synthesis primarily occurs in the ribosomes in the cytoplasm.
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What has 5 carbon sugar, phosphate group, and nitrogoneus base
Answer:
Nucleic acids are polymers of individual nucleotide monomers. Each nucleotide is composed of three parts: a 5-carbon sugar, a phosphate group, and a nitrogenous base. Only two 5-carbon sugars are found in nature: ribose and deoxyribose.
Explanation:
Final answer:
A structure with a five-carbon sugar, phosphate group, and nitrogenous base is called a nucleotide. It is the basic building block of nucleic acids like DNA and RNA, where it forms the sugar-phosphate backbone and contains bases for pairing.
Explanation:
The structure that has a five-carbon sugar, a phosphate group, and a nitrogenous base is known as a nucleotide, which is the monomer of nucleic acids like DNA and RNA. Each nucleotide in DNA is made up of deoxyribose, which is the five-carbon sugar, while in RNA, the sugar is ribose. The sugar is connected to a phosphate group at its 5' carbon and to a nitrogenous base at the 1' carbon.
There are four different nitrogenous bases in DNA: adenine, guanine, cytosine, and thymine. In RNA, uracil is used instead of thymine. The phosphate group of one nucleotide can link to the 3' carbon of the sugar in another nucleotide, forming the sugar-phosphate backbone of the nucleic acid strand. The nitrogenous bases pair through hydrogen bonding, which creates the structure of the double helix in DNA.
stem cells are considered pluripotent true or false?
Answer:
False
Explanation:
Answer:
The answer is TRUE! Not fasle. Just did the exam for summer school.what is the innermost layer of the atmospherewhat is the innermost layer of the atmosphere extending 17 km above sea level at the topics and about 7 km above the Earth's North and South Poles
Answer:
The innermost layer of the atmosphere is TROPOSPHERE.
Explanation:
Atmosphere - The gaseous surroundings of earth is known as atmosphere. On the basis of variations in temperature, atmosphere has several layers as follows-
Troposphere- It is the innermost layer of the earth. extending 17 km above sea level at the equator and about 7 km above the earth's poles.Weather phenomenon occurs in this layer.It is known as troposphere because of vigorous air current.
Stratosphere- It is the second layer above troposphere.It extends approx 50 km above the earth surface.Ozone is also found in this layer. ozone plays very important role in maintaining thermal balance.
Mesosphere- It is the third layer of earth surface.Extending approx 50 to 85 km above the earth.Here temperature remains low.And at the top of this layer i.e, mesopause has the coldest temperature.
Thermospher- Temperature in this region is slightly high because of absorption of solar light.
Exosphere- It is the outer most layer of earth. Any particle or object in this layer if moving very fast can escape to the space. The exopause boundary of exosphere is approx 250-500 km above the surface. This is the transition layer between earth atmosphere and space
The percentage of people who live in households with income
below the official poverty line is referred to as
workfare
income distribution
the poverty threshold
the poverty rate
Answer:
The percentage of people who live in poverty.
(gradpoint)
Explanation:
Answer:
POVERTY RATE
Explanation:
gradpoint
In what organism would you find cell division being completed by cytokinesis, a process in which a new plate forms between two daughter nuclei?
Question 14 options:
animal
bacterium
plant
Answer:
Plant
Explanation:
Cytokinesis, the division of the cytoplasm to form two new cells, overlaps with the final stages of mitosis. In plants, the cell plate forms down the middle of the cell, splitting it into two daughter cells separated by a new wall.
all of the following processes require the cell to use ATP energy except
Answer:
Passive Transport
Explanation:
The passive transport is an energy-independent process, which does not use ATP energy. It involves transport of non-polar, uncharged molecules and some small polar molecules through lipid bilayer.
Answer:
passive transport
Explanation:
All of the following processes require the cell to use ATP energy, except passive transport. I hope that this is the answer that you were looking for and it has actually come to your help.
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which of the following statements is true?
a. prokaryotes divide by mitosis
b. animal cells form new cell walls when they divide
c. eukaryotes have circular chromosomes
d. cytokines differs in plant cells and animal cells
Answer:
D. cytokines differs in plant cells and animal cells
Explanation:
A. is false, as prokaryotes to not divide by mitosis. They divide by binary fission.
B. is false. Animal Cells do not have cell walls. Prokaryote and Plant cells have cell walls. Animal Cells have plasma membranes.
C. is also false. Eukaryotes have line-like chromosomes. Prokaryotes have a single circular chromosome.
D. IS true. Cytokinesis differs in plant cells from animal cells. This is mainly due to the cell wall in the plant cell.
The statement that cytokinesis differs in plant and animal cells is true, as plants form a cell plate and animals use a cleavage furrow. Other statements related to cell division in prokaryotes are incorrect as they divide by binary fission, not mitosis.
Explanation:Among the choices provided, the true statement is d. cytokinesis differs in plant cells and animal cells. In animal cells, cytokinesis occurs through the formation of a cleavage furrow that pinches the cell into two, while in plant cells, a cell plate forms along the centerline of the cell, eventually leading to the development of a new cell wall that separates the two daughter cells.
Prokaryotic cells, such as bacteria, do not divide by mitosis because they lack a nucleus and instead divide by a process known as binary fission. The other statements provided are false since prokaryotes have a single, circular chromosome (therefore, the claim that eukaryotes have circular chromosomes is incorrect), and animal cells do not form cell walls when they divide (they only form a new cell membrane).
Write three examples of healthy behaviour. Consider your own healthy behaviors as well as those you might imagine practicing in future.
Answer:
The three examples for healthy behavior are as follows, eating healthy, physical exercise, getting proper sleep.
Explanation:
Healthy behavior is one related to the belief of a person and its action for his/her own well being. This is also linked with the healthy lifestyle. Eating healthy will keep us away from various diseases, well we should practice 5 meal a day habit, in future it will help us in maintaining balanced diet. in the same way physical exercise is important so as to maintain the mental health, physical fitness is necessary remain active and healthy. Proper sleep can provide us good mental health, proper physical health and also gives us better quality of life. It is very necessary for proper functioning of the brain.
The voyage of the HMS challenger was important because
Answer:
HMS Challenger is an expedition that happened in the 19th century. With this expedition, modern oceanography began.
Explanation:
This expedition answered many questions regarding the sea world. It was organized especially for collecting data about the ocean world, like the temperature of the water, currents, ocean life, etc.
HMC challenger helped to discover more than 4000 unknown species.
Leon has a big football game this evening. What monomer should he load up on during dinner to ensure that he has enough energy for the big game? Fatty acids Amino acids Nucleotides Monosaccharides
Answer:
The answer is Monosaccharides
Leon should focus on consuming monosaccharides, like glucose, which are critical for immediate energy during his big football game. Carbohydrates are the primary and most efficient energy source compared to fatty acids or amino acids for such activities.
Leon should load up on monosaccharides during dinner to ensure that he has enough energy for the big football game. Monosaccharides, such as glucose, are the most common source of energy for ATP production in the body and therefore represent an immediate source of fuel for muscles during exercise. Excess glucose can also be stored as glycogen in the liver and muscle cells for later use.
Carbohydrates, proteins, and fats are key macronutrients that provide energy for athletic performance. However, for immediate energy needs, such as participating in a sports event like a football game, carbohydrates in the form of monosaccharides are the most efficient source of fuel. While fatty acids and amino acids are important for long-term energy storage and muscle repair, respectively, they are less efficient in meeting immediate energy demands compared to carbohydrates.
What happens to the density of the Earth’s Layers as you move towards the core of the earth
Answer:
Core is the densest layer of the earth.
Explanation:
The structure of the earth's interior is made up of several concentric layers. The earth's interior is divided into three layers- The Crust, the mantle and the core. The density of the outermost layer the crust is 3 g/cm^3. As we move towards the interior, the earth become more dense. The density of the second layer mantle ranges between 2.9-3.3 g/cm^3. The core is the innermost layer of the earth, surrounding the earth's center. the density of the core ranges between 9.5-14.5 g/cm^3.
What is the difference between aerobic and anaerobic processes
Answer:
The principle difference between aerobic and anaerobic process is aerobic process requires oxygen and generate more energy whereas anaerobic process occurs in absence of oxygen and generate less energy.
Explanation:
Aerobic process or aerobic respiration include glycolysis,TCA cycle and oxidative phosphorylation.As a result during Aerobic respiration a glucose molecule undergo complete oxidation to form CO2 and H2O along with 38 molecules of ATP.
On the other hand Anaerobic process or Aerobic respiration only involves glycolysis.As a result no TCA cycle and oxidative phosphorylation occur during Anaerobic process.Glycolysis that occur during Anaerobic produces only two molecules of ATP.
During anaerobic respiration the end product of pyruvate undergo lactic acid fermentation to form as well as to regenerate NAD+.
The process that requires oxygen is called an aerobic process while a process that doesn’t air is called anaerobic process.
Explanation:
Processes in nature are aerobic and anaerobic. For anaerobic processes , air is not an essential element while it is not so for aerobic processes. There are several examples of aerobic and anaerobic processes in nature. Respiration, an important biological process sometimes takes place anaerobically in some organisms while most of the organisms respire aerobically.
Some bacteria can respire anaerobically. When organisms like yeast respire anaerobically alcohol and carbon dioxide is released.
Sunlight includes three types of light. Describe each one
Answer:
Visible light, ultraviolet light and infrared light
Answer:
1. visible light, with wavelengths between 0.4 and 0.8 micrometre,
2. ultraviolet light, with wavelengths shorter than 0.4 micrometre,
3. infrared radiation, with wavelengths longer than 0.8 micrometre.
Explanation:
Which of the following is a nonrenewable energy source?
hydroelectric power
nuclear energy
wind energy
solar energy
B. Nuclear Energy is the only logical answer
Photosynthesis is broken up into two reactions: light dependent and light independent/dark. Explain in detail what is taking place in the light dependent reactions.
Answer: In light dependent reaction, CO2 and water enter the leaf through stomata from the environment. Water molecules splits into oxygen molecule when the light hits the pigment in the membrane of a thylakoid called chloroplast. Then the electrons move down to enzymes. Sunlight allow the enzymes to convert ADP to ATP and NADP+ is converted into NADPH. The ATP and NADPH is used by the calvin cycle to convert carbon dioxide into simple sugar glucose.