The sensory endings of intrafusal muscle fibers __________ when the muscle lengthens and __________ when it shortens.
A. shorten; relax
B. stretch; relax
C. relax; stretch
D. elongate; stretch
Answer: B
You might also like to view...
The involuntary immigration of Africans as slaves to America and the motivation to succeed educationally in subsequent generations of African Americans is analogous to __________.
A. the voluntary immigration of Italians to America and the motivation for learning and success in their subsequent generations B. the involuntary immigration of Irish to America and the motivation for learning and success in their subsequent generations C. the voluntary immigration of Germans to America and the motivation for learning and success in their subsequent generations D. the involuntary immigration of Koreans to Japan during World War II and the motivation for learning and success in their subsequent generations
A researcher investigates whether there is a relationship between hours of sleep and memory for photographs by having 40 people sleep in the laboratory and waking 20 of the participants after 4 hours of sleep and the others after 8 hours of sleep. After they are awakened, each participant is asked to study 21 photographs and then recall as many details from the photographs as possible. In this
study, what is 8 hours of sleep? a. The independent variable b. The dependent variable c. The sample d. A condition of the independent variable
Stress only began to occur in the past 15 years because of technology.
Answer the following statement true (T) or false (F)
An infant's production of vowel-like sounds that are present by 2 months are called
A) vegetative sounds. B) cooing. C) echolalia. D) true babbling.