Bird skeletons are very delicate, and therefore, difficult to be preserved. The bones of the birds are soft. The small animals are very prone to physicochemical as well as biological decay. This is why the fossil record of bird is incomplete and well-preserved fossils of birds are rare to find, except at a few unusual sites.
It has two strands
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carbon dioxide Coronavirus
Answer:
S-Phase
Explanation:
S-Phase is when DNA synthesis/DNA Replication occurs
