What do lateral lines and semicircular canals have in common?
a. Both involve hair cells.
b. Both are chemoreceptors.
c. Both are associated primarily with the detection of sound waves.
d. All of these are true.
A
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Refer to the accompanying figure. The type of neuron labeled as 1 is a(n):
a. motor neuron. b. pyramidal neuron. c. sensory neuron. d. efferent neuron. e. interneuron.
DNA from different bacteria may be combined using all of the following EXCEPT
A) transformation. B) viruses. C) plasmids. D) cloning.
Which of the following is a characteristic of sodium ion?
A) It is a cation. B) It is present primarily in the intracellular fluid. C) It shifts out of the blood by active transport. D) Diuretic drugs lead to high blood levels.
Which of the following is a structure in which sperm mature and are stored?
A) accessory glands B) testis C) epididymis D) vas deferens