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ser-zykov [4K]
3 years ago
14

Which phenotypic change is genetic?

Biology
1 answer:
Cloud [144]3 years ago
3 0

Answer:

The answer is a

Explanation:

A is the only answer that happened over time and is with a whole population. The others are just something that happens immediately or are caused by an outside factor. Genetics happen inside the organism.

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Which statement best describes the relationship of photosynthesis and energy?
nikdorinn [45]
A. The process of photosynthesis is energy-storing because the process converts light energy into chemical energy, which is stored in the bonds of glucose.
3 0
3 years ago
What general type of mutation has the greatest effect on the protein produce
Lyrx [107]

Answer: The most serious of these mutations will be the insertion of 2 bases. Becasue the genetic code is read in triplets, a 2 base insetion will alter the reading frame of the code causing a frameshift mutation meaning every amino acid after the site of the mutation will be incorrect.

8 0
3 years ago
Which type of solution will cause cells to swell, or even to burst?
Inga [223]

Answer:

(b) Hypotonic solution

Explanation:

  • Any solution having lower osmotic pressure as compared to another solution is called as a hypotonic solution and the reason that a solution is hypotonic is that it has more water and lesser dissolved solute in it.
  • If a cell is placed in a hypotonic solution, the amount of water content in the cell would be lesser as compared to that of the solution and hence, the water will enter the cell due to which the cell will swell and may even burst.
  • The water molecules can enter the cell through the semipermeable membrane and in case of plant cells, the presence of cell wall may prevent it bursting, however, the animal cells lack the cell wall and hence if kept in hypotonic solution for long these cells may burst.
4 0
3 years ago
4. Which of the following describes a long term effect of exercise on<br> breathing rate?
igor_vitrenko [27]

Answer:

Effects of exercise on breathing

During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest.

Woman jogging along a tree-lined path in a park.Exercise increases the rate and depth of breathing

The heart rate increases during exercise. The rate and depth of breathing increases - this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.

The rate of breathing can be measured by counting the number of breaths in one minute. The depth of breathing can be measured using a spirometer (a device that measures the volume of air inhaled and exhaled).

To investigate the effects of exercise on breathing, record the rate of breathing for a few minutes when the person is at rest. After they do some exercise, record their rate of breathing every minute until it returns to the normal resting value.

Explanation:

7 0
3 years ago
In which situation would all of the larger elephants in a herd most likely stand shoulder-to-shoulder around a young calf?
Oksana_A [137]

Answer:

To protect the calf from predators?

Explanation:

6 0
2 years ago
Read 2 more answers
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