The thick filaments of skeletal muscle ____
a. are composed of proteins with a double head and tail
b. are composed of actin
c. are attached to Z lines
d. make up the light bands of the muscle
e. are bead-like proteins
ANSWER: a
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In what way does the life cycle and reproduction of seedless vascular plants resemble the life cycle and reproduction of amphibians?
What will be an ideal response?
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