The ________ of a sperm contains the enzymes essential for fertilization
A) acrosome
B) flagellum
C) nucleosome
D) neck
E) nucleus
A
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Which muscles arise from the skull and often attach to the skin?
A. Muscles of mastication B. Muscles of the pharynx C. Extrinsic eye muscles D. Muscles that move the tongue E. Muscles of facial expression
At rest, more blood flows to the skin and abdominal organs than to the lungs.
Answer the following statement true (T) or false (F)
All of these are responses or processes controlled by the heat-gain center except
A) nonshivering thermogenesis. B) vasoconstriction. C) the countercurrent mechanism. D) increased respiration depth. E) hunter's response.
Which extrinsic eye muscle moves through a pulleylike loop?
A. Superior rectus B. Medial rectus C. Lateral rectus D. Inferior oblique E. Superior oblique