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jeka94
3 years ago
7

What are two of the things human ancestors used the sky for?

Biology
1 answer:
melisa1 [442]3 years ago
3 0

Answer:

Explanation:I know Th at one of the reasons is that they would look at the sun to tell time.

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The phosphate groups allow the nucleotides to link together, creating the sugar-phosphate backbone of the nucleic acid while the nitrogenous bases provide the letters of the genetic alphabet. These components of nucleic acids are constructed from five elements: carbon, hydrogen, oxygen, nitrogen, and phosphorous.

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