Biology, 28.01.2021 19:40 Admin

1. Which common feature indicates that fishes, reptiles, amphibians, birds, and mammals evolved from a common ancestor?
A. an internal digestive system
B. a boney skull to protect the brain
C. gills or lungs for gas exchange
D. an internal skeleton with a backbone

Answers: 3

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1. Which common feature indicates that fishes, reptiles, amphibians, birds, and mammals evolved fro...