What feature is common to all cells?
a. Plasma membrane
b. Chloroplast
c. Nucleus
d. Flagella
e. Mitochondria
a
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The natural philosophy of Aristotle and his colleagues was
(a) mechanistic. (b) vitalistic. (c) a belief in absolute truth. (d) a and c.
The utricle and saccule ____
a. each contain an organ of dynamic equilibrium b. detect rotation of the head c. detect how the head is oriented relative to the ground d. are semicircular canals e. use the auditory nerve to send information to the brain
What first happens to a neuron as an impulse passes
along it is best described as a. polarization. b. depolarization. c. ionization. d. hyperpolarization. e. transpolarization.
Which structure grows faster than any other as the embryo develops?
a. the heart b. the nervous system c. the head d. the digestive system e. the urinary system