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docker41 [41]
3 years ago
15

The common ancestors of birds and mammals were very early (stem) amniotes, which almost certainly possessed three-chambered hear

ts (two atria, one ventricle). Birds and mammals, however, are alike in having four-chambered hearts (two atria, two ventricles). The four-chambered hearts of birds and mammals are best described as ________.
Social Studies
1 answer:
sashaice [31]3 years ago
8 0

Answer:

homoplasies

Explanation:

According to my research on studies conducted by various biologists, I can say that based on the information provided within the question the four-chambered hearts of birds and mammals are best described as homoplasies. In the context of biology, homoplasy is a trait or character that is found in a set of species but not present in their common ancestor.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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