What role does the hypothalamus play in the onset of puberty?
a. It releases testosterone.
b. It signals the pituitary gland.
c. It releases gonadotropins.
d. It enlarges the gonads.
b. It signals the pituitary gland.
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The shape of the response pattern generated by an FI is called a:
A. scallop B. ogive C. break and pause D. accelerating dynamic
An advantage of maintaining a constant body temperature is that it ____
a. enables an animal to stay equally active at all environmental temperatures b. enables an animal to survive on a wider variety of diets c. minimizes the energy that must be expended on basal metabolism d. enables an animal to detect changes in the temperature of the environment
Heroin and other opiate drugs are thought to be functionally similar to:
a. dopamine b. acetylcholine c. endorphins d. GABA e. serotonin
After successfully running from the large, snarling, drooling grizzly bear that was running directly toward you, you pause to catch your breath and collect your wits. The physical symptoms you now experience are controlled by the
a. sympathetic nervous system. b. parasympathetic nervous system. c. central nervous system. d. neurotransmitter acetylcholine.