The interaction of two proteins-actin and myosin-allows the muscles of diverse animal species to generate force and produce movement. Given this, which of the following are TRUE statements?
A) The evolution of muscle contractile function is a highly conserved process.
B) The evolution of muscle contractile function shows great diversity in a number of different animal groups.
C) The force that animal muscles can produce depends on the amount of overlap between actin and myosin protein filaments because this overlap affects the number of actin cross-bridges that can form with myosin binding sites.
D) The force that animal muscles can produce depends on the amount of overlap between actin and myosin protein filaments, because this overlap affects the number of myosin cross-bridges that can form with actin binding sites.
Correct Answer:
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