A highly resistant bacterial structure having a low metabolic rate is a(n)
A. pathogen.
B. mutation.
C. endospore.
D. toxin.
C. endospore.
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Accommodation refers to the adjustment of the lens curvature by the ciliary muscle when you focus on near or far objects.
a. true b. false
Which of the following statements about the nitrogen cycle is false?
a) Ammonification converts organic nitrogenous matter from living organisms into ammonium (NH4+). b) Denitrification by bacteria converts nitrates (NO3-) to nitrogen gas (N2). c) Nitrification by bacteria converts nitrates (NO3-) to nitrites (NO2-). d) Nitrogen fixing bacteria convert nitrogen gas (N2) into organic compounds.
Multiple nuclear divisions without cytoplasmic divisions result in cells called
a. mycoses. b. coenocytes. c. haustoria. d. pseudohypha
When a goose spots an egg outside of its nest, the goose gets out of the nest and rolls the egg back. Once started, a goose continues the egg-retrieval movement all the way back to the nest, even if the egg is taken away during the process. This is called:
a) step-wise reproductive collaboration. b) repeated pattern fixation. c) a fixed action pattern. d) prepared learning. e) supernormal stimulus.