Spermatophores are specialized packets held together by glands that A. play a role in influencing the permeability of the testicular wall. B. are used to transport sperms into the female reproductive tract. C. regulate the release of sperm cells. D. stimulate contraction of the
Which of the following does not describe the accessory glands of the female reproductive system? They
A. are saclike expansions of the vaginal region.
B. Are muscular and ectodermal in origin.
C. usually open at the apical portion of the bursa copulatrix.
D. creamy white in color and opens into the genital chamber.
Spermatophores are specialized packets held together by glands that
A. play a role in influencing the permeability of the testicular wall.
B. are used to transport sperms into the female reproductive tract.
C. regulate the release of sperm cells.
D. stimulate contraction of the genital ducts.
The zone of the testicular follicle where the primary spermatocytes become secondary spermatocytes and spermatids during the first and second meiosis
respectively is the zone of
A. transformation.
B. maturation and reduction.
C. growth.
D. germarium.
A hormone which has been shown in some species to have an inhibitory effect on spermatogenesis is
A. ecdysone.
B. peptide hormone.
C. juvenile hormone.
D. inhibin.
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