In the process of spermiogenesis, ________ become ________.
A. spermatogonia; spermatocytes
B. spermatozoa; spermatids
C. spermatocytes; spermatids
D. spermatids; spermatozoa
E. spermatocytes; spermatozoa
Answer: D
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The layers of a ureter are
A. inner muscular coat, middle fibrous coat, outer inner mucous coat. B. inner vascular coat, middle neural coat, outer mucous coat. C. inner fibrous coat, middle muscular coat, outer mucous coat. D. outer fibrous coat, middle muscular coat, inner mucous coat.
Digital refers to fingers.
Answer the following statement true (T) or false (F)
In ___, target cells reduce the number of receptors for a hormone in response to long-term overstimulation.
a. habituation b. the antagonistic response c. desensitization d. down-regulation e. the synergistic response
Which quantity is not a force?
A. friction B. mass C. weight D. gravity