Multiple Choice
The most important determinant of the proportion of fast- and slow-twitch fibers in skeletal muscle is
A) diet.
B) exercise.
C) genetic heritage.
D) age.
E) None of the above
Correct Answer:

Verified
Correct Answer:
Verified
Q134: Which of the following statements about exoskeletons
Q136: Refer to the diagram below. Which of
Q137: When animals die, muscles stiffen in rigor
Q138: The sliding filament theory states that _
Q140: Shot-putters competing in track and field events
Q141: Ca<sup>2+</sup> binds to _ in skeletal muscle
Q142: The exoskeleton of clams contains<br>A) calcium carbonate.<br>B)
Q143: Which of the following statements about smooth
Q144: Aerobic exercise such as jogging increases<br>A) myoglobin.<br>B)
Q191: Fast-twitch skeletal muscle fibers, called white muscle,