The diploid stem cells that undergo mitosis to produce sperm are called ________.
Fill in the blank(s) with the appropriate word(s).
spermatogonia
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Some neurotoxins work essentially the same way as some local anesthetics, which is to
A) prevent depolarization by blocking Na+ entry into the cell only. B) inactivate the enzyme that destroys the neurotransmitter and bind to Na+ channels and inactivate them. C) bind to Na+ channels and inactivate them and prevent depolarization by blocking Na+ entry into the cell. D) bind to Na+ channels and inactivate them only. E) inactivate the enzyme that destroys the neurotransmitter only.
Agglutinogens are contained on the __________, whereas the agglutinins are found in the __________.
a. cell membrane of the RBC; plasma b. plasma; cell membrane of the RBC c. nucleus of the RBC; mitochondria d. mitochondria; nucleus of the RBC
The muscle that elevates the tongue is the
A) genioglossus. B) hyoglossus. C) palatoglossus. D) geniohyoid. E) digastric.
The stratified squamous epithelium is located within which of the following layers of the alimentary canal?
A) serosa B) submucosa C) mucosa D) muscularis externa