A young llama is called a:
A) calf
B) cria
C) clutch
D) colt
B
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What do the genioglossus, hyoglossus, and styloglossus muscles have in common?
A) All names reflect direction of muscle fibers. B) Each acts synergistically to elevate the jaw. C) All act on the tongue. D) All names indicate the relative size of the muscle.
The placenta secretes hCG, which causes the ovaries to maintain cyclic follicular development (ovulations) during pregnancy
Indicate whether the statement is true or false
Fast-twitch muscle cells rely heavily on anaerobic respiration for their ATP production, whereas slow-twitch muscle cells rely on aerobic respiration. Considering this information, which of the following is true?
a. As compared to fast-twitch muscle cells, slow-twitch muscle cells produce a ATP more quickly. b. As compared to slow-twitch muscle cells, fast-twitch muscle cells produce a higher ATP yield per glucose molecule. c. Fast-twitch muscle cells have a poor blood supply compared to slow-twitch muscle fibers. d. Fast-twitch muscle cells require oxygen for ATP production, whereas slow-twitch muscle cells primarily metabolize glucose in the absence of oxygen.
What is the power stroke?
A. a protein found along the groove of the F-actin double helix B. a T tubule and two adjacent terminal cisternae C. the combination of myosin heads with active sites on actin molecules D. the movement of myosin head while attached to actin myofilament E. after exercise, the oxygen taken in that exceeds the oxygen required for resting metabolism