How is DNA used as evidence for evolution?
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A. All species have the same amount of DNA.
B. All species have the same number of genes.
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C. All species have the same genes.
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D. All species have the same genetic code.

D

Explanation:

Every species has it's own unique coding to there DNA

i can't see the full page, therefore, can't answer it

explanation:

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.