Answer:
Secondary endosymbiosis is when a living cell engulfs another eukaryote cell that has already undergone primary endosymbiosis. It has happened often enough that it has led to genetic diversity among the organisms on Earth.
Explanation:
hope this helps I don't know Its correct answer
What term best describe the role of carbon dioxide in the human body
Answer:
Carbon dioxide is essential for internal respiration in a human body. Internal respiration is a process, by which oxygen is transported to body tissues and carbon dioxide is carried away from them. Carbon dioxide is a guardian of the pH of the blood, which is essential for survival.
Explanation:
in pine trees Male pine cones contain:
Answer:
they male contain 2 seeds
how is the dna in a prokaryotic different from a eukaryote?
Ethyl alcohol is formed in aerobic respiration .
True or false
Answer:
Mark me brainliest （⌒▽⌒）（⌒▽⌒）Explanation:
In the alcoholic fermentation, (by yeast, a unicellular fungi) incomplete oxidation of glucose is achieved under anaerobic condition by a set of reactions where the pyruvic acid is converted to carbon dioxide and ethanol.PLSSS HELP ME!!!
All of the following are functions that the kidney performs except
A. controls pH
D. produces erythropoetin
B. produces urea
E. eliminates nitrogenous wastes
C. maintains blood pressure
eliminates nitrogenous wastes.I think
what was the name of the first successfully cloned mammal?
Answer:
Dolly the sheep
Explanation:
I hope I could help :D
What level of protein should a basketball player in the off-season trying to gain muscle mass consume
Answer: 2.5-3.o grams per body weight
Explanation:
cholesterol is needed to build call membrane.what is cholesterol
Answer:
Answer below
Explanation:
Cholesterol refers to a group of chemical compounds. A sterol is a kind of lipid, and cholesterol is one of them. All animal cells produce cholesterol, which is an important structural component of cell membranes. It is a yellowish crystalline solid when chemically separated.
a sterol-type molecule present in most human tissues. Cholesterol and its derivatives are key components of cell membranes and precursors of other steroid chemicals, but a high proportion of low-density lipoprotein in the blood (which delivers cholesterol to the tissues) is linked to a higher risk of coronary heart disease.
Cholesterol is a waxy, fat-like molecule found in all of your body's cells. Cholesterol is required by your body for the production of hormones, vitamin D, and chemicals that aid digestion. Your body produces all of the cholesterol you require.
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(Hope this helps can I pls have brainlist (crown)☺️)
2.
Consider this DNA nucleotide sequence:
ACG GTT CTA GAC
Which mutation will result in a frame shift?
A. substitution of T for the first A in the sequence
B. deletion of GTT from the sequence
C. insertion of C at the start of the sequence
D. substitution of ATA for ACG in the sequence
Answer:C insertion of C at the start of the sequence
Explanation:
Definition of “principle of dominance”
THE BEST ANSWER GETS BRAINLIEST
Why are hydrogen bonding and popularity so important for water molecules?
Answer:
they are so important because the presence of hydrogen bonds also makes water molecules more 'sticky' or in scientific terms cohesive and adhesive. The small charges on the water molecules allows them to stick together which is why water has a 'skin' that small insects can walk on, and also explains why water can be sucked up a straw so easily.
Explanation:
I hope this helps you!
The three possible fates of light striking a photosynthetic pigment are _____, ____ and transmission
Answer:
The three possible fates of light striking a photosynthetic pigment are reflection, absorbance/absorption and transmission
Explanation:
Choose one plant which sexually reproduces. Compare and contrast
characteristics of the plant with a variation of the same plant.
How does the water cycle cause weather? Choose any that are correct
Answer:the 1st and 2nd one
Explanation:
I’m probably late but the reason is that they help in the process of forming a cloud that will eventually lead to weather like it being cloudy or rain.
How does a push or pull affect motion?
Answer:
A push makes something go forward in contrast to your position. A pull makes something go backwards in contrast to your position
Explanation:
Imagine that you took a small population of A. cooki lizards and moved them to a new island that was heavily forested. Predict what would happen over time to the color of the dewlap in that population of lizards. Using your knowledge of natural selection and genetics, explain your prediction.
what energy carrying molecule is created when the chemical bonds of glucose are broken
By oxidizing glucose and other dietary molecules in a step-by-step manner, ATP and NADH are produced as chemical energy.
What is ATP?
A vital "energy molecule" present in all living things is adenosine 5′-triphosphate, also known as ATP and typically written without the 5′-. In particular, it is a coenzyme that transfers energy to cells by releasing its phosphate groups when it interacts with enzymes like ATP triphosphatase.
By adding a phosphate group to another molecule, ATP can drive biological operations (a process called phosphorylation). Special enzymes are responsible for carrying out this transfer, which connects the cellular processes that need energy to the release of energy from ATP.
A variety of cellular functions, such as ion transport, muscular contraction, the transmission of nerve impulses, substrate phosphorylation, and chemical synthesis, all require energy and hence use ATP. A large demand for ATP is generated not just by these processes but also by others.
Learn more about ATP, here:
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What is the surface temperature of Barnard's Star in Kelvins? (Astronomy)
Answer:
the answer should be 3,100 kelvin.
Explanation:
its surface has very hot flares causing it to be about 3,000 to 8,000 kelvins. this would mean its surface temperature should be around 3,100.
how can I study quickly
Answer: Time yourself, takes notes(postcards), try listening to music, try exercising to see if it relieves stress, get more sleep, test yourself, go to your teacher for study guides or explanations
Explanation: Help yourself for a better future, and also Search for questions online or from your teachers
Bigger beaks are dominant to smaller beaks. If a bird with a large beak (Bb) is blown to an island that requires smaller beaks, what is a possible genotype of its mate needed in order to produce an ospring with a smaller beak?
bb maybe................
will give brainliest and 70 points
SELECT MULTIPLE ANSWERS
For a claim about the natural world to be considered scientific, what attributes must it have?
It must be consistent with only a small portion of relevant observations or data.
It must be open to modification if new evidence doesn't completely support it.
It must be based on scientific observations that can be repeated in a controlled setting.
It must be applicable to future events and occurrences.
Answer: The correct answer is that it must be based on scientific observations that can be repeated in a controlled setting. Explanation: This controlled setting, which replicates the real world encounters is known as scientific experiments. Experiments permit for a smaller scale world where the results can be determined with the manipulation of specific elements in the controlled setting. Experiments assist in the understanding of the natural world.
Answer:
I will send a screenshot of the one a person solves
What is the difference between community and ecosystem?
Please help
Answer:
Ecosystems are composed of all of the various living organisms, along with the abiotic factors that impact them. The difference between community and ecosystem in ecology is that the community only refers to living things within an ecosystem. A sample of soil can provide a small-scale example.:
Cellular respiration uses one molecule of glucose to produce approximately
A. 2 atp molecules
B. 4 atp molecules
C. 32 atp molecules
D. 36 atp molecules
Answer and Explanation; Equation for Cellular Respiration:
C₆H₁₂O₆ + 6O₂ --> 6H₂O + 6CO₂ + 36-38 ATP
Products of Cellular Respiration:
Water, Carbon Dioxide, and 36-38 ATP molecules
The answer is (D) 36 ATP molecules.
Which situation would increase the fluidity of a
phospholipid bilayer?
A. decreasing the temperature
B. increasing the number of proteins
C. increasing the number of cholesterol molecules
D. increasing the number of unsaturated fatty acids
Answer:
C
Explanation:
Cholesterol molecules stay in between fatty acid tails preventing them from sticking together
The situation that would increase the fluidity of the phospholipid bilayer is increasing the number of cholesterol molecules. The correct option is C.
What is a phospholipid bilayer?A phospholipid bilayer is a layer around a cell. The cell membrane is composed of a bilayer of phospholipids. It contains fatty acids and alcohol.
Bilayers of phospholipids are essential parts of cell membranes. The lipid bilayer serves as a physical barrier to the entry and exit of molecules and ions from the cell. However, allowing the selective transit of specific substances into and out of cells is a crucial role of the cell membrane.
Cholesterol is present between fatty acid molecules and prevents them from sticking to each other.
Therefore, the correct option is C. increasing the number of cholesterol molecules.
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Which of the following best describes the components of the DNA twisted ladder?
A. The sides are made of alternating polypeptide chains, and the rungs are made of amino acid segments joined by
hydrogen bonds
B. The sides are made of alternating amino acids, and the rungs are made of polypeptide chains joined by hydrogen bonds.
C. The sides are made of alternating phosphate-sugar groups, and the rungs are made of complementary nitrogenous
bases joined by hydrogen bonds
D.The sides are made of alternating nitrogenous bases, and the rungs are made of phosphate-sugar groups joined by hydrogen bonds
The sides are made of alternating phosphate-sugar groups, and the rungs
are made of complementary nitrogenous bases joined by hydrogen bonds
DNA which is also called Deoxyribonucleic acid contains genetic information
which are passed from the parent to offspring. DNA is made up of an
alternating phosphate-sugar group in which the sugar is deoxyribose.
The alternating phosphate-sugar group are located at the side of the ladder.
The rungs are made up of complementary nitrogenous bases joined by
hydrogen bonds. Example of nitrogenous bases include adenine, thymine,
guanine and cytosine.
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What motivates Pacific salmon to migrate? And give two obstacles they face during migration.
In which biome(s) are fawnsfoot mussels found??
Answer:
The fawnsfoot is found in the Mississippi drainage and the St. Lawrence
sensory transduction in the auditory system is much like transduction of __________.
Answer:
mechanosensory stimuli.
Explanation:
The controls the materials that enter and
leave the cell.
Answer:
The Cell Membrane
Explanation:
The Cell Membrane
An organism in its niche within an ecosystem is similar to?
A: a baseball player in his position on the baseball team.
B: the umpire not on a team.
C: the audience in the stands of a game.
D: the opposing team at a baseball game.
An organism in its niche within an ecosystem is similar to a baseball player in his position on the baseball team.
NICHE:Niche in biology refers to the specific role or position of an organism in its ecosystem or habitat.
The niche of an organism is specific or particular to that organism and this enables it to adapt and survive in its environment.
This explanation shows that niche can be likened to a baseball player in his specific position on the baseball team.
Learn more about niche at: https://brainly.com/question/814740
Answer: A: a baseball player in his position on the baseball team.
