Biology Middle School

Which is the source in variations in a population of organisms?
A. Changes in environment.
B. Changes in genes.
C. The interaction of genes with an environment.
D. The interaction of individuals with an environment.

Answers

Answer 1

Answer:

The change in environment

Explanation:

Because they need to adapt to live

Answer 2
A
Because organisms evolve to adapt to new environments

Related Questions

Two types of ocean movement, surface currents and deep water currents, result from which of these? *
(Note: Two of these are correct. You can only choose one.)

A. Temperature variations at different depths
B. The gravitational force from the moon
C. Large cargo ships pushing the water
D. Wind energy

Answers

Answer:

c i am pretty sure hope it helps

the answer is C: Large cargo ships pushing the water

Which of these factors is involved in earthquake formation?

Answers

Answer:

Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two blocks of rock or two plates are rubbing against each other, they stick a little. They don't just slide smoothly; the rocks catch on each other.

Explanation:

a earthquake is formed when, two titanic plates rub together and then get caught on each other which creates a earthquake

Life on Earth depends on a balance of photosynthesis and respiration.

Explain how the two processes work in a cycle.

Answers

The cycle of photosynthesis and respiration maintains the balance of carbon dioxide and oxygen on earth. Photosynthesis makes the glucose that is used in cellular respiration to make ATP. The glucose is then turned back into carbon dioxide, which is used in photosynthesis. While water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water. While photosynthesis requires carbon dioxide and releases oxygen, cellular respiration requires oxygen and releases carbon dioxide. It is the released oxygen that is used by us and most other organisms for cellular respiration. We breathe in that oxygen, which is carried through our blood to all our cells. In our cells, oxygen allows cellular respiration to proceed. Cellular respiration works best in the presence of oxygen. Without oxygen, much less ATP would be produced.
The person above has the correct answer
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