Which of the following NOT is an example of a respiratory surface?
a. amphibian skin
b. human lungs
c. fish gills
d. ctenophore body surfaces
e. fish scales
E
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Four of the five actions listed below are responses to
cold temperatures. Select the exception. a. vasoconstriction of peripheral blood vessels b. uncontrolled muscular contraction c. thermoreceptors send messages to the hypothalamus d. enhanced secretion of sweat glands e. increased metabolic reactions
Darwin's observations led to his proposal that evolution occurred due to
a. random chance. b. climatic changes. c. natural selection. d. migration. e. interaction of species.
Mina had a throat infection; in a few days it had spread to her ear. What part of her ear would be affected first?
A) external auditory canal B) pinna C) inner ear D) middle ear
Ginkgo biloba belongs in the plant group ________
Fill in the blank(s) with correct word