A single motor unit usually contains a motor neuron and
A. one muscle fiber.
B. both fast- and slow-twitch fibers.
C. either fast-twitch or slow-twitch fibers but not a mixture of the two types.
D. a muscle spindle.
Answer: C
You might also like to view...
In experimental research, the _____ variable is the one manipulated by the experimenter
a. independent c. external b. dependent d. internal
The sample mean of the difference scores is used to calculate a sample t score in what test?
What will be an ideal response?
Early signs of giftedness include all of the following EXCEPT
a. being a loner and socially inept. b. an unusually good memory. c. an early interest in books and early reading by age three. d. showing cooperation and kindness and understanding toward others.
Recent research has revealed that marijuana use during pregnancy
a. is associated with low birth weight. b. has no noticeable effect. c. should be recommended to alleviate maternal discomfort. d. may impair the functioning of the areas of the brain responsible for emotional regulation.