Answer:
A generation time for bacteria varies from bacteria to bacteria.
Explanation:
The time taken for a bacteria to double in number is known as generation time.
bacteria reproduce very fast and the generation aslo varies. some generation time for other bacteria is 20 minutes while others are 10 and others 30
this generation time is determined by the environment in which the bacteria is hence determining its generation
Which is one of the three domains?
-Eukarya
-Protista
-Animalia
-viruses
Answer: Eukarya.
Explanation: The domains are Archaea, Bacteria, and Eukarya.
Answer:
Eukarya is the correct answer.
Explanation:
organisms are grouped into three domains based on the difference in nucleotides sequences in the rRNA and lipid structure in the cell membrane.
There are three domains
Archaea( they do not have a nuclear membrane) bacteria(they do not have a nuclear membrane )prokaryotic organisum are the member to the Archaea domain or bacteria domain
3.Eukarya( they have a membrane-bound nucleus)
Eukaryotic organisms are the part to the eukarya domain.
5. A main function of a plant's seed is to
(1) store food to be used during early development
(2) attract pollen to be used during development
(3) take in light energy to be used during photosynthesis
(4) produce chlorophyll to be used during photosynthesis
Answer:
the main function of a plant's seed is reproduction to keep it in existence. So, that makes the answer (3) Take in light energy to be used during photosynthesis.
Explanation:
The primary function of a plant's seed is to store food for the embryo's early development. Seeds consist of an embryo, seed coat, and endosperm, with the latter providing the necessary nutrients.
A main function of a plant's seed is to store food to be used during early development. This stored energy and nutrients are critical for the growth of the embryo within the seed. Within flowering plants, these resources can be found in the form of the endosperm or sometimes within the cotyledons, depending on the type of plant.
Seeds have three main parts: the embryo, the seed coat, and the endosperm or cotyledon. The embryo is the young plant itself, the seed coat provides protection, and the endosperm or cotyledons serve as a food reserve. The seed effectively allows a new plant to have a head start in life, providing protection, nutrients, and a mechanism for dormancy, enabling germination when conditions are optimal for growth.
How wide would the sun be in your model?
Answer:
865,000
Explanation:
all you have to do is change the miles into inches
The answer you are looking for is A. 865.
This is found by simply dividing 865,000 by 1,000. This is because every 1,000 miles = 1 inch (according to the scale given within the question). Thus making A. 865 your answer.
I hope this helps!
Label the steps for protein synthesis in order, beginning with the first step
Once the protein is made, the gene for a particular trait is expressed
mRNA joins the ribosome, and the anticodons from tRNA join mRNA to form a chain of
amino acids
RNA polymerase unzips DNA and free RNA nucleotides join DNA to form mRNA
V A chain of amino acids is formed from peptide bonds, creating a protein
mRNA is transported from the nucleus of the cell to the ribosomes of the cell.
Answer:
1) RNA polymerase unzips DNA and frees RNA nucleotides join DNA to form mRNA
2) mRNA is transported from the nucleus of the cell to the ribosomes of the cell
3) mRNA joins the ribosome, and the anti codons from tRNA join mRNA to form a chain of amino acids
4) A chain of amino acids is formed from the peptide bonds, creating a protein.
5) Once the protein is made, the gene for a particular trait is expressed.
Answer:
Step 1: RNA polymerase unzips DNA and free RNA nucleotides join DNA to form mRNA.
Step 2: mRNA is transported from the nucleus of the cell to the ribosomes of the cell.
Step 3: mRNA joins the ribosome, and the anticodons from tRNA join mRNA to form a chain of amino acids.
Step 4: A chain of amino acids is formed from peptide bonds, creating a protein.
Step 5: Once the protein is made, the gene for a particular trait is expressed.
Explanation:
STEP 1:
During the process of transcription, RNA polymerase unzips DNA and forms mRNA.
STEP 2:
mRNA formed in nucleus then moves out to ribosomes in the cytoplasm.
STEP 3:
This mRNA undergoes translation process and tRNA transfers amino acids and forms chains of amino acids.
STEP4:
Amino acid chains are joined by peptide linkages to form proteins.
STEP 5:
Formation of protein results in the expression of that particular trait whose gene has undergo transcription and translation.
Down syndrome, the most common genetic condition in the United States, is also called trisomy 21. What does this mean?
A. A person with Down syndrome has two copies of chromosome 21 but they're fused together. During early embryo development, these chromosomes didn't segregate properly.
B. A person with Down syndrome has only one copy of chromosome 21 instead of two copies. Either the sperm cell or the egg cell was lacking this chromosome.
C. A person with Down syndrome has three copies of chromosome 21 instead of two copies. An extra chromosome 21 was present in either the sperm or the egg cell.
D. A person with Down syndrome has three copies of chromosome 21 instead of two copies. Two sperm cells simultaneously fertilized the egg cell.
Trisomy=3 chromosomes; 1 more than the required pair (2)
21=the type of chromosome
So, here we can eliminate A and B.
Now we have C and D.
I know that when sperm cell(s) simultaneously fertilize [an] egg, a class of identical twins will form. Therefore, we can eliminate D, leaving us with merely C. Henceforth, C is your final answer.
Answer:
The correct answer option is C. A person with Down syndrome has three copies of chromosome 21 instead of two copies. An extra chromosome 21 was present in either the sperm or the egg cell.
Explanation:
Down Syndrome is the most genetic condition in the United States caused by the error in the cell division called 'disjunction'.
A normal person has two copies of chromosome 21 while a person with down syndrome has three copies of it in either the sperm or the egg which fails to separate.
the difference between amphid and plasmid
Answer:
The main difference between plasmid and amphid is that plasmid is an extra-chromosomal element of mainly bacterial cells whereas a amphid is a vehicle that carries foreign DNA molecules into another cell .
Explanation:
Lydia is walking in the woods at night to observe owls. She hears a rustling behind a tree, which startles her and causes her body to go into a fight or flight response as the sympathetic nervous system is activated. What is likely to happen to her digestive system during this response?
A.
The enteric nervous system will speed up digestion to use energy.
B.
The peripheral nervous system will speed up digestion to use energy.
C.
The peripheral nervous system will slow down digestion to conserve energy.
D.
The enteric nervous system will slow down digestion to conserve energy.
Answer:
D. The enteric nervous system will slow down digestion to conserve energy.
Explanation:
The enteric nervous system is like the digestive system's very own brain. It controls the way the digestive system functions. In a fight or flight response, the enteric system slows down the digestive system, this is to make sure that the body has enough energy to course through our muscles and brain to prepare for a "fight" or "flight."
Answer:
The answer is D
Explanation:
Which of the following two events occur to create a sea breeze? Select all that apply. Warm air rises on the ocean and moves toward the land to cool Warm air rises on land and moves toward the ocean to cool Cool air moves from the ocean to be warmed by the land Cool air moves from the land to be warmed by the ocean
Answer:
Warm air rises on land and moves toward the ocean to cool
Cool air moves from the ocean to be warmed by the land
Explanation:
The land heats up faster than the oceans during the day. This is because water has a high heat capacity and takes more energy to raise its temperatures by one degree (even in comparison to land). Therefore land heats up the air above it faster than the oceans. The air mass over land rises due to drop in density. The cooler and denser air mass above the oceans moves towards land to replace the rising warm air. This creates a cool breeze felt on land during the day as the cool air rushes in.
Why can’t cellular respiration occur without photosynthesis?
Answer:
Because photosynthesis makes Glucose and cellular respiration breaks down the glucose into Carbon Dioxide and H20 (Water). 5.0.
Explanation:
Photosynthesis and cellular respiration are interconnected processes. Photosynthesis uses light energy to create carbohydrates and oxygen while cellular respiration uses these carbohydrates and oxygen to release energy. These processes have a cyclical relationship enabling energy conversion.
Explanation:Cellular respiration cannot occur without photosynthesis because of the interdependence of the two processes. Photosynthesis in plants absorbs light energy to create carbohydrates (like glucose) in chloroplasts and releases oxygen as a byproduct. Cellular respiration, on the other hand, involves the breakdown of these carbohydrates using oxygen in the cytoplasm and mitochondria of cells to release energy.
During photosynthesis, with the help of an enzyme known as RuBisCO, CO₂ reacts with an organic compound called RuBP to form a three-carbon molecule of G3P which, after three cycles, leaves the cycle to become a part of a carbohydrate molecule. These carbohydrates are then used as critical starting material for cellular respiration process. The binary synergy between photosynthesis and cellular respiration enables the cyclical conversion of light energy into chemical energy usable by organisms.
To show this in an equation form:
During photosynthesis - 6CO₂ + 6H₂O --> C6H12O6 + 6O₂ (glucose and oxygen are produced).
During cellular respiration (the reverse process) - C6H12O6 + 6O₂ --> 6H₂O + 6CO₂ (water and carbon dioxide are created).
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what prevents natural selection from removing vestigial structures from a species?
a) they have not yet become useful
b) they were never harmful or beneficial to a species
c) they are not genetic traits
d) they are neither harmful nor beneficial to individuals
Which one of the following human organ systems is mainly made up of glands and hormones? A. Endocrine system B. Excretory system C. Nervous system
Answer:
A. Endocrine
Explanation:
The endocrine system is a collection of glands that produce the hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among all the other things
Endocrine system is the human organ system that is made up of glands and hormones.
Option A
Explanation:
The "endocrine system" is responsible for secretion of hormones inside the body and it is made up of endocrine glands such as thyroid glands, pituitary glands, pineal gland, adrenal gland, pancreas, ovaries and testes. These glands releases hormones into the blood to target organs which are situated at a distance or into nearby tissue to target nearby cells or to target self. Endocrine glands works by forming negative and positive feedback loops to regulate the proper functioning and effect of the hormone on the target organ or cells and for control the production of hormone from the glands itself.
which would stop a plant from being able to grow?
Answer:no air food water
Explanation:
Answer:
not getting enough sunlight
Explanation:
I believe this is the answer your looking for ape-x
SOMEONE HELP ME PLEASEEEE!!!!!!!
Chromosphere C. Layer of the sun that is known for its red color and can only be seen during eclipses
Convective zone B. Layer of the sun where energy is transferred by convection
Core D. The central and hottest section of the sun
Radiative zon A. Layer of the sun where energy is transferred by thermal conduction
The correct match is :Chromosphere C. Layer of the sun that is known for its red color and can only be seen during eclipses ,Convective zone B. Layer of the sun where energy is transferred by convection, Core D. The central and hottest section of the sun, Radiative zone A. Layer of the sun where energy is transferred by thermal conduction .
Chromosphere: The chromosphere is a layer of the sun that is known for its red color and can only be seen during solar eclipses. It is located above the photosphere, which is the visible surface of the sun. Convective zone: The convective zone is the layer of the sun where energy is transferred by convection. Convection is the process of heat transfer through the movement of fluids or gases.
Core: The core is the central and hottest section of the sun. It is the region where nuclear fusion reactions occur, converting hydrogen into helium and releasing tremendous amounts of energy in the form of light and heat .Radiative zone: The radiative zone is the layer of the sun where energy is transferred by thermal conduction.
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Based on the diagram below, at which point is the most oxygen being
produced?
Oxygen in Plants and Time of Day
Oxygen Production Rate
Daun
A. Point B
B. Point C
C. Point D
D. Point A
Answer:
apex is point C
Explanation:
its the highest point
Point C is the most oxygen being produced. thus, option B is correct.
What is photosynthesis?Photosynthesis is the process by which green plants and certain other organisms transform light energy into chemical energy. Photosynthesis produces oxygen as a by-product. It's made at the light stage. Several factors influence the rate of photosynthesis.
Because the amount of light and temperature are optimal at point C, more oxygen is created.
As the light intensity rises, so does the rate of photosynthesis. For photosynthesis, most plants require red and blue light wavelengths. Photosynthesis is a regulated process involving enzymes. The temperature has an impact on enzyme-controlled processes. The rate of photosynthesis is low at dawn due to the low temperatures. Due to the enhanced rate of photosynthesis at sunset, the temperature is at its optimum, resulting in a high oxygen rate.
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Which of the following soil types is most vulnerable to wind erosion?
Clay soils
Loamy soils
Coarse sand
Rocky soil
(I’m between B and C...)
Answer is:
Coarse sand - C
Answer:
Loamy Soils
Explanation:
Loamy soil is "made of small, light, and nutrient rich soil particles."
What kinds of cells can develop from unipotent stem cells
Unipotent These stem cells can produce only one cell type but have the property of self- renewal that distinguishes them from non-stem cells.
Examples of a unipotent stem cell are a germ line stem cell (producing sperm) and an epidermal stem cell (producing skin)
What stem cells are unipotent?Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair system for the body.
There are two main types of stem cells: embryonic stem cells and adult stem cells.
What is true of unipotent stem cells?They work to replenish the cells throughout an individual's life, but can be repurposed to serve another tissue or organ. Unipotent stem cells are derived from other types of stem cells, but at some point, differentiate themselves to become a specific type of tissue.
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1. If a black heterozygous guinea pig is crossed with a homozygous white guinea pig with the
genotype bb, what is the probability that the offspring will be white?
Answer:
2/4
Explanation:
because the ratio off the offspring is 2 black pig : 2 white pig. so probability of white pig will be 2/4.
how are these two elements different ? hydrogen and oxygen- which one has the greatest mass ?
Explanation:
Hydrogen and Oxygen have many properties in common, but they have a lot of differences as well. Both are gases, both are colorless, both are odorless. They both differ from each other in the following regard:
Hydrogen has one unpaired electron whereas oxygen has two unpaired electrons.
Hydrogen can form only one covalent bond whereas oxygen can form two covalent bonds.
The most common isotope in hydrogen has no neutron in its nucleus whereas there are 8 neutrons in most common isotope of oxygen.
Atomic mass of oxygen is far greater than that of hydrogen. Hydrogen has an atomic mass of 1.00794u where as oxygen has an atomic mass of 15.999u
Which type of biome is the least productive?
Answer:
The "TUNDRA" biome is the least productive biome there is.
Explanation:
The types of biomes like deserts and tundra are the least productive in nature.
What is Biome?A Biome may be defined as a very large area that is characterized by a particular type of vegetation specifically.
A Biome may also be defined as a very large area of the ecosystem that is running in nature in an unmanaged way.
Examples of biomes include tropical rainforests, coral reefs, grasslands, etc.
The deserts and the polar tundra are the biomes that are the least productive ones. This is because such ecosystems are highly exposed to heat energy and water respectively.
Therefore, it is well described above.
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A key difference between green algae and land-based plants is that
A. land-based plants don't have vascular tissue and must absorb nutrients directly from the environment.
B. green algae don't have chloroplasts and absorb their food rather that perform photosynthesis.
C. green algae don't have vascular tissue and must absorb nutrients directly from the environment.
D. land-based plants breath in carbon dioxide while green algae consume oxygen.
Answer:
The correct answer is option C.
Explanation:
Green algae lack the vascular tissues, that is they do not have phloem or xylem for transporting water and nutrients throughout their bodies. They have a thalloid that means they do not have a body divided into root stem and leaves. The thalloid body helps in absorbing nutrients from surroundings.
The land-based plants have xylem and phloem (vascular tissues) to transport water, nutrients, and minerals throughout the body.
Thus, the correct answer is option C.
what is a substance dissolved in water called
solute is the thing being dissolved and the solvent is the thing that dissolves it. so the water is the solvent and etc
uyssey QUIZ
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What is the molarity of a solution containing 8 grams of solute in 500 mL of
solution? Round to the nearest tenth. Don't forget the unit (gram formula
mass of solute = 24 g).
The molarity of the solution containing 8 g of solute in 500 mL of solution is 0.7 M
What is molarity?
This is defined as the mole of solute per unit litre of solution. Mathematically, it can be expressed as:
Molarity = mole / Volume
How to determine the mole of solute Mass of solute = 8 g Molar mass of solute = 24 g/mol Mole of solute =?Mole = mass / molar mass
Mole of solute = 8 / 24
Mole of solute = 0.333 mole
How to determine the molarity Mole of solute = 0.333 mole Volume = 500 mL = 500 / 1000 = 0.5 L Molarity =?Molarity = mole / Volume
Molarity = 0.333 / 0.5
Molarity = 0.7 M
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Arianne recently traveled abroad where she enjoyed eating food from different countries and learning about different cultures. A week after she returned home, she checked into the hospital with signs of nausea, fever, and diarrhea. What best explains what happened to Arianne?
A parasitic bacteria contaminated her food.
A mutualistic bacteria infected her digestive system.
A commensalistic organism is now living in her intestine.
A predatorial organism is consuming her natural bacteria
Answer:
A parasitic bacteria contaminated her food.
Explanation:it has to be parasitic for you to have those symptoms therefore its A
Answer:
A parasitic bacteria contaminated her food.
Explanation:
Parasitic bacteria like Clostridium botulinum or salmonella cause food poisoning. The symptoms of food poisoning appear within a few hours of food ingestion or may be after 6 to 10 days. All the symptoms listed here like nausea, fever, and diarrhea occur due to food poisoning. It is clear that she is suffering from food poisoning and since these bacteria caused problems to Arianne without benefiting her in anyway, they are considered as parasites.
Also, mutualistic bacteria are the ones which live in the body of host and provide certain benefits to the host, a commensalistic organism is the one which gets benefits from the host without harming the host, a predatorial organism on the other hand kills the another organism in order to get benefits but in the question nothing like that is happening to Arianne so all these options are incorrect.
Which of the following describes what can happen to an enzyme as temperature rises
Stellar evolution is _____.
Answer:
Explanation:
Stellar evolution is the description which gives explanation of how star changes it's form with time. Depending upon the mass of the star the life time of star may range from few million to trillion years. It describes the fact that how the stars are born, how they mature and how they die finally.
in general, characteristics that help an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?
Answer:
Natural selection.
Explanation:
Natural selection means that those with good phenotypes are more likely to survive and reproduce. On the other side of the same coin, organisms with less beneficial characteristics are less likely to survive. Because of this, they can't pass their genetic information down, making it less common, and vice versa.
Natural selection is characteristics that help an organism survive and reproduce become more common in a population over time.
Who proposed the theory of natural selection?
The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species
Natural selection means that those with good phenotypes are more likely to survive and reproduce. On the other side of the same coin, organisms with less beneficial characteristics are less likely to survive. Because of this, they can't pass their genetic information down, making it less common, and vice versa.
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Which best describes the chemical reaction taking place?
Answer:
Hydrolysis of disaccharides
Explanation:
The correct option is (C).
This statement correctly describes a chemical reaction. Chemical reactions involve the breaking of existing chemical bonds in the reactant molecules and the formation of new chemical bonds to produce the products. During a chemical reaction, the arrangement of atoms is rearranged, resulting in the formation of different molecules with new chemical properties. The breaking and formation of chemical bonds involve the transfer or sharing of electrons between atoms, leading to the creation of new substances.
In a chemical reaction, reactant molecules are consumed and transformed into products. The products of a chemical reaction are the substances that result from the rearrangement of atoms in the reactants. Reactants do not "come out" of a reaction unchanged; instead, they are converted into products.
In chemical reactions, energy may be released or absorbed, depending on the specific reaction and the nature of the reactants and products involved. Some reactions release energy in the form of heat (exothermic reactions), while others absorb energy from the surroundings (endothermic reactions). The release or absorption of energy depends on factors such as bond energies and reaction conditions.
In a chemical reaction, reactants are the starting materials that undergo chemical changes to produce products. Products are the substances that are formed as a result of the reaction. Reactants are transformed into products during the course of the reaction, but products do not "go into" the reaction as starting materials.
complete question given below:
Which statement correctly describes a chemical reaction?
A. Reactants come out of a reaction.
B. Energy is always released.
C. Bonds between atoms break and reform.
D. Products go into a reaction.
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Why are nonnative species a threat to biodiversity?
They often use up resources that other organisms need.
They are not able to successfully breed in the wild.
They release pollution into many environments.
They easily contract and spread diseases to other organisms.
Answer: The correct answer is: [A]:
___________________________________________________
" They often use up resources that other organisms need. "
___________________________________________________
Hope this is helpful to you!
Wishing you the best!
___________________________________________________
Answer:
A. They often use up resources that other organisms need.
Explanation:
Nonnative species are a threat to biodiversity because they often use up resources that other organisms need.
what is mutualism? with example!
. Which of the following is not a benefit of the water cycle? (4 points) The water cycle moves water from place to place. The water cycle continually cleans the water on Earth. The water cycle stores water for use in a drought. The water cycle helps regulate the temperature on the Earth.
Answer:
the water cycle stores water for use in a drought
Explanation:
Answer:
The water cycle continually cleans the water on Earth.
Explanation: