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yKpoI14uk [10]
3 years ago
6

The earliest mammals were very small and shrew-like. True or False

Biology
1 answer:
jek_recluse [69]3 years ago
6 0
{I got this from online hope it helps}The earliest known mammals were the morganucodontids, tiny shrew-size creatures that lived in the shadows of the dinosaurs 210 million years ago. They were one of several different mammal lineages that emerged around that time. All living mammals today, including us, descend from the one line that survived. So yeah it’s true
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Claim and evidence:
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It would happen that the effectiveness of an original vaccine could become less if there was a mutation in the virus that caused the protein spike to change because the antibodies created would not be specific for the new virus.

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