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What are antagonistic muscles? Give one example.
a. Muscle is a tissue that functions in pairs since it can't push independently. They are known as __________ because they work against each other.
b. The muscles in the upper arm control the _________ of the arm.
c. Muscles_________, which operate in opposition to one another.
d. The two muscles, the biceps and triceps .
e. There are ________ sets of antagonistic muscles in the iris of the eye.
f. The _________ muscles of the pupil are responsible for the widening of the eye, and the circular muscles make the pupil ________.
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