During inflammation, as edema increases, more pressure is exerted on nerve endings, leading to increased:
a. pain
b. loss of function
c. redness
d. heat
a. pain
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The genetic material (DNA) of eukaryotes is organized into
(a) centrioles. (b) spindles. (c) chromosomes. (d) microtubules.
Why do the photosynthetic tissues of plants look green?
What will be an ideal response?
The biological basis of nicotine addiction is that nicotinic receptors bind
A) nicotine molecules and the neurotransmitter acetylcholine. Binding releases dopamine, which causes pleasurable feelings. B) postsynaptic receptors that normally bind endorphins. C) the dopaminergic receptor, releasing acetylcholine, which causes the pleasurable feelings. D) the pleasure center in the brain.
At what stage of mitosis do sister chromatids become full-fledged chromosomes?
A. cytokinesis B. telophase C. anaphase D. metaphase E. prophase