If for some reason your hypothalamus doesn't raise your core temperature when you are exposed to very cold temperatures,
A. you will die of hypothermia.
B. you will die of hyperthermia.
C. your brainstem and spinal cord will attempt to raise your core temperature.
D. your temporal lobe will tell you to move to a warmer environment, which will take care of the problem.
Answer: C
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How did the developers of the Social Readjustment Rating Scale measure the amount of stress caused by each of the items on the scale?
a. Each item was evaluated by a group of experts on stress and behavioral medicine. b. They assigned the items life change units based on the judgments of a large group of normal adults. c. Scores were given to each item based on how much family members thought each event contributed to the death of a loved one. d. The items were weighted according to estimates from epidemiological research on how much each contributes to mortality.
Which of the following statements is true of neurotransmitters?
A) Neurotransmitters have identical chemical structures that can fit into any receptor site. B) "Loose" neurotransmitters are held by synapses before being released into the synaptic fluid. C) Once released by the synaptic vesicles, all the molecules of a neurotransmitter find their way into receptor sites. D) "Loose" neurotransmitters are either broken down or reabsorbed by the axon terminal.
By about ____ months after conception, males and females show distinct external genital structures
a. two c. four b. three d. five
Public health officials want to commit money for HIV/AIDS prevention to screening for _____ because they increase the risk of transmitting HIV to others
a) other STDs b) type AB or type A blood c) allergies d) rashes