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Dovator [93]
3 years ago
6

Which substances compose the backbone of DNA?

Biology
2 answers:
Molodets [167]3 years ago
5 0

Answer:

Pentose Sugar and phosphate group compose the DNA's backbone.

allsm [11]3 years ago
3 0

Answer:

i think it's phosphates and amino acids

Explanation:

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The graph shows the changes in the number of animal fauna's living on earth overtime in how the fauna's were affected by differe
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Explanation:

Looking at the graph, the event at the end of the Triassic resulted in the smallest dip in the amount of fauna in the graph. This means that this event resulted in the extinction of fewer faunas than any of the other five major events.

Option A is wrong as the event at the end of the Devonian decreased the number of Cambrian fauna.

Option B is wrong as the event at the end of the Cretaceous resulted in a decrease in the Paleozoic fauna.

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Answer:

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Explanation:

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<u>For example:</u> Male widow-bird grows exceptional long tail feathers, females lack tail feathers.

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