Compare the advantages and disadvantages of large body size for mammals that live in cold environments. Go beyond the information presented in the chapter
What will be an ideal response?
This is intended to be an open-ended question. Students should have no difficulty thinking of at least these examples:
Advantages: Deep pelage provides excellent insulation; mobility allows long-distance movement when searching for food; the mass-specific energy requirement of large mammals is lower than that of small species; the young are large at birth and able to thermoregulate.
Disadvantages: Large animals have difficulty finding a sheltered microclimate;, even though their mass-specific energy requirement is low, they need more food than small animals.
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The hormone that is the basis for a pregnancy test is ________.
A) human placental lactogen (hPL). B) relaxin. C) progesterone. D) human chorionic gonadotropin (hCG). E) LH.
The symptom of numbness of the palmar region often associated with carpal tunnel syndrome is caused by
A) compartmentalization of flexor and extensor muscles. B) ischemia from pinching off the superficial palmar arch. C) compression of the long extensor muscles of the hand. D) compression of the median nerve within the carpal tunnel. E) None of the answers are correct.
An action potential in a motor neuron is ____________________ to the terminal button
Fill in the blank(s) with correct word
Which of the following is NOT an example of the cooperative effects of the sympathetic and parasympathetic divisions of the ANS?
A. Saliva production B. Male sexual function C. Micturition D. Sweating