Four of the five proteins listed below are molecules

that participate in muscle contraction. Select the
exception.
a. collagen
b. troponin
c. tropomyosin
d. actin
e. myosin


Answer: a

Biology & Microbiology

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Ringlike patterns on an earthworm and "six-pack abs" in humans are evidence of ____ in an animal's

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During a chemical reaction, atoms are ________

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