Which of the following events occurs to a territory-holding male zebra finch when he hears the song of
the male zebra finch that holds the neighboring territory?
a. Cells in the nucleus of his forebrain fire frequently.
b. The territory-holding male flies out to drive off the neighboring male.
c. Cells in the nucleus of his forebrain do not respond to the song of the neighboring male.
d. Testosterone levels in his blood rise measurably.
e. The territory-holding male initiates a ritualized threat display that may culminate in an
expansion of his territory into the neighbor's land.
C
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The brain center for homeostatic control of the internal environment is the ________
a. hypothalamus b. cerebellum c. pons d. thalamus
If you completely girdle a deciduous tree’s trunk in mid-summer, why could the tree potentially retain
leaves throughout some or all of the rest of the growing season, but eventually die?
What will be an ideal response?Figure "A" in the accompanying figure is a ____
a. cotyledon b. cladode c. corm d. eudicot leaf e. monocot leaf
Select the correct sequence concerning glucose catabolism.
A. glycolysis - acetyl - CoA - pyruvate - Krebs cycle - electron transport chain B. glycolysis - pyruvate - acetyl - CoA - Krebs cycle - electron transport chain C. glycolysis - pyruvate - acetyl - CoA - electron transport chain - Krebs cycle D. glycolysis - acetyl - CoA - pyruvate - electron transport chain - Krebs cycle