Which term describes human pathogens?
A. halophiles
B. thermophiles
C. psychrophiles
D. acidophiles
E. mesophiles
Answer: E
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Pax6 is a transcription factor that can act as a repressor for some of its target genes or as an activator for others
A. true B. false
If cowbird eggs are included in an oropendola nest that is located near bee hives, what would be the
expected outcome?
a. The cowbird eggs would be ejected from the nest to eliminate the competition. b. The cowbird eggs would be ejected from the nest due to a reaction of the mother bird's immune system. c. The cowbird eggs would not be ejected from the nest because they provide an additional food source. d. The cowbird eggs would not be ejected from the nest because they provide protection from large predators. e. The cowbird eggs would not be ejected from the nest because they provide protection from parasites.
Perhaps a plant’s greatest liability is its inability to
a. produce growth hormones. b. use aerobic respiration. c. move when conditions around it deteriorate. d. produce its own lipids and proteins. e. respond to dwindling supplies of nutrients and water.
Convergence occurs when several presynaptic cells
A) depolarize simultaneously. B) depolarize sequentially. C) form a synapse with a single postsynaptic cell. D) activate the sodium-potassium pump of a Schwann cell. E) form a synapse with multiple postsynaptic cells.