Acromegaly is the result of excessive secretion of ____ by adults
a. mineralocorticoid
b. glucocorticoid
c. thyroxine
d. testosterone
e. growth hormone
ANSWER: e
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Free-living flatworms (planaria) move by using
(a) cilia. (b) flagella. (c) pseudopodia. (d) a muscular foot.
Once they are identified, ____ take priority in worldwide conservation efforts.
A. healthy ecosystems B. riparian zones C. hot spots D. grasslands E. forests
A behavior that has evolved to aid relatives, although at personal risk, and thus increases the chance of your genes being passed on to the next generation is known as
A. operant conditioning. B. adaptive behavior. C. kin selection. D. altricial behavior. E. instinctive behavior.
Which of the following two mutagens that would be classified as base analogs?
A) acridine orange and proflavine B) hydroxyurea and peroxidase C) ethylmethane sulfonate and ethylmethylketone peroxide D) ultraviolet light and cosmic radiation E) 5-Bromouracil and 2-amino purine