Eyes contain ____

a. chemoreceptors
b. mechanoreceptors
c. photoreceptors
d. nociceptors
e. thermoreceptors


ANSWER: c

Biology & Microbiology

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Which of the following groups is represented today by a single species?

A) Conifers B) Liverworts C) Ginkgos D) Bryophytes E) Cycads

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In the process of inflammation, the immediate and initial vasoconstriction in the precapillary arterioles is the result of neural impulse by the sympathetic system

a. true b. false

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If you lay your forearm along a table, you can rotate it so that your hand changes from a palm-down to a palm-up position. This is possible because your radius and ulna join at a

A) ball-and-socket joint. B) hinge joint. C) pivot joint. D) ligament.

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The immediate results of the widespread use of pesticides and fertilizers included ________, but long-term results included ________

A) dramatic increases in crop yields; the evolution of pest resistance B) the increased spread of malaria; delayed resistance to pesticides C) global declines in agricultural productivity; worldwide distribution of DDT D) global declines in undesirable pests such as mice and rats; increases in these pests

Biology & Microbiology