A muscle that decreases the angle between two bones at a joint is called a(n)

a. flexor.
b. agonist.
c. depressor.
d. antagonist.
e. extensor.


A

Biology & Microbiology

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You're examining the structure of a newly discovered protein, and you see that it includes lots of a-helices and B-pleated sheet. Your specific observations are of the ______________ structure of the protein, and are the direct results of _____________?

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