Biology, 20.09.2019 06:30 hopkinsgail5516

Approximately how long did it take from the time the first feather evolved until the first animal took flight?
a. 1 million years
b. 1000,000 years
c. 50 million years
d. 500 years

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Approximately how long did it take from the time the first feather evolved until the first animal to...