Short, hairlike structures used only by eukaryotic cells for movement are called
A) pili.
B) flagella.
C) fimbriae.
D) pseudopodia.
E) cilia.
E
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Hamilton's Rule is a calculation of the strength in a population of
A. sexual selection. B. kin selection. C. natural selection. D. genetic relatedness. E. group selection.
If your mother and father both have cystic fibrosis, which is caused by a recessive allele, the odds of you inheriting
only one allele for the disorder are ____.
a. 1/4 b. 1/2 c. 3/4 d. 1 e. 0
What would a nerve poison that blocked neurotransmitter receptors on the dendrites do?
A) It would cause continued stimulation of the membrane of the receiving neuron. B) It would prevent transmission across the synaptic cleft. C) It would inhibit the regeneration of neurotransmitter for use by the synaptic knobs. D) It would inactivate the enzyme that degrades the neurotransmitter.
Which of the following sets of values would result in a population with a growth rate of zero?
a. b = 1000, d = 500, i = 750, e = 1000 b. b = 1000, d = 500, i = 1000, e = 1000 c. b = 1000, d = 500, i = 1500, e = 1000 d. b = 1000, d = 500, i = 0, e = 1000 e. b = 1000, d = 500, i = 500, e = 1000