The action of a nerve impulse, neurotransmitter release at the neuromuscular junction, calcium release from the sarcoplasmic reticulum, and subsequent muscle contraction is known as:
A. an action potential
B. threshold potential
C. a motor event
D. excitation-contraction coupling
D
You might also like to view...
Which of the following is the least reliable form of contraception?
a. condoms b. sterilization c. withdrawal d. oral hormonal
How might ants on an acacia tree serve in a mutualistic relationship?
A) The ants fight off potential herbivores. B) The ants carry disease. C) The ants bring nitrogen to the tree. D) The ants bring sugar to the tree.
What causes the "pulling" of a water column from the soil to the leaves?
A) hydrogen bonds B) gravity C) hardiness D) active transport
Which of the following was NOT proposed by Lamarck's theory of evolution?
a. Changes in species are a result of natural selection. b. Organisms change in response to their environment. c. New characteristics are passed from one generation to the next. d. Species change through time.