Oxidation and reduction reactions are chemical processes that result in a gain or loss of:
A. atoms.
B. neutrons.
C. electrons.
D. molecules.
E. protons.
C
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Phenotypes:
A. can be subject to environmental conditions. B. only result from gene transcription. C. are invariant. D. result solely from the actions of a single gene. E. None of the answer options is correct.
The type of feeding used by many hydrozoans is: a. scavenging
b. active predation feeding. c. foraging. d. suspension feeding.
DNA replication of a single DNA molecule is referred to as semiconservative because
a. it results in two nonidentical DNA molecules. b. one DNA strand is replicated continuously, while the other must be replicated discontinuously. c. of the two DNA molecules, one is made up totally of parental DNA, while the other is entirely newly synthesized DNA. d. all the DNA strands in the two DNA molecules will have both parental and newly synthesized DNA. e. each of the two DNA molecules will consist of one parental strand and one newly synthesized strand.
Fight-or-flight reactions include activation of the _____
A) parathyroid glands, leading to increased metabolic rate B) anterior pituitary gland, leading to cessation of gonadal function C) adrenal medulla, leading to increased secretion of epinephrine D) pancreas, leading to a reduction in the blood sugar concentration