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1 vote
The most abundant protein in mammals is __________.

a. testosterone
b. estrogen
c. collagen
d. keratin

2 Answers

4 votes
The most abundant protein in mammals is collagen.Final answer: C
User Hage
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8.3k points
4 votes
Answer is C. It makes up more than third of the body's protein.

User AaronShockley
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