Answer:
Three major forms of DNA are double stranded and connected by interactions between complementary base pairs. These are terms A-form, B-form,and Z-form DNA.
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Tar sands pits , sorry if I got this wrong
The answer to your question is


Enzymes help break down carbohydrates, fats, and proteins.
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I think its a because risk actually means exposure to danger our sacrifice your self plz mark as brainly
D is the correct answer. Hope this helps.