★ Muscle Anatomy Quiz
How does the sarcomere shorten (contract) ?
A. The myosin filaments contract
B. The actin filaments contract
C. The myosin is pulled by the actin
D. The actin is pulled by the myosin
Select your answer:
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A. balance
B. vision
C. hearing
D. movement
Biochemistry › View
An isotope of an element is still the same element, but it differs in the
A. atomic number
B. average atomic mass
C. mass number
D. atomic symbol