During thermoregulation, how does an endotherm respond to a high body temperature?
A) Blood vessels near the skin dilate.
B) Blood vessels near the skin constrict.
C) The brain shuts down to prevent damage.
D) Blood glucose levels increase to stimulate metabolism.
A
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A grouping that includes an ancestor and some, but not all, of the descendants of that ancestor is described as:
A. paraphyletic. B. polyphyletic. C. monophyletic. D. convergent. E. analogous.
A cell with a Barr body is_____
a. a bacterium b. a sex cell c. from a female mammal d. infected by Barr virus
The prime culprit that produces coral bleaching
is
a. fungal infections. b. water levels changing. c. salinity levels changing. d. light levels changing. e. temperature changes
There will be approximately ____ mice in four
months in a population of 1,000 mice where 500 mice are born and 400 mice die monthly. a. 1,060 b. 1,160 c. 1,260 d. 1,360 e. 1,460