What statement best compares photosynthesis and cellular respiration?

a.
photosynthesis breaks down sugars to release energy, while cellular respiration stores energy as sugars.
b.
photosynthesis only takes place in the light, while cellular respiration takes place in the light and dark.
c.
both photosynthesis and cellular respiration break down sugars to release chemical energy.
d.
both photosynthesis and cellular respiration take place during the light and during the dark.

The answer is B

Explanation: Photosynthesis and respiration takes place in the light.  Once it turns dark Photosynthesis stops but respiration does not.

A.

Explanation:

Photosynthesis breaks down sugars, glucose, and releases energy and stores the remaining glucose and energy for the next time photosynthesis occurs.

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

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