Eyes contain ____
a. chemoreceptors
b. mechanoreceptors
c. photoreceptors
d. nociceptors
e. thermoreceptors
ANSWER: c
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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
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
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.
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