The spindle apparatus appears during
a. anaphase.
b. metaphase.
c. interphase.
d. prophase.
e. telophase
D
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After reaching the inner ear, the frequency of a sound primarily affects
A. the amplitude of basilar membrane vibration. B. the location of the greatest basilar membrane vibration. C. the vibrational amplitude of the tectorial membrane.
The use of venom for paralyzing prey is common in
a. cowries. b. Triton's trumpet snail. c. cone snails. d. mantis shrimp. e. sea stars.
The word that best describes the interaction of sympathetic and parasympathetic systems is
a. antagonistic. b. cooperative. c. overriding. d. subversive. e. ineffective.
Which of the following can affect a small, endangered population so severely that it goes extinct?
A) Lost alleles and/or low genetic diversity B) Increased mating opportunities C) Sexual selection D) Artificially adding new genes E) Matings with a closely related species