In the epiphyseal plate of a long bone, cartilage grows:
A) in a circular fashion.
B) by pushing the epiphysis away from the diaphysis.
C) from the edges inward.
D) by pulling the diaphysis toward the epiphysis.
Answer: B
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Which pressure remains negative throughout the respiratory cycle?
A) intrapulmonary B) intrapleural C) intra-alveolar D) atmospheric E) intrapulmonary and intra-alveolar
Action potentials are related to impulses conducted along an axon in that
A) active transport of Na+ and K+ are required for impulse conduction but not for an action potential. B) propagation of a series of action potentials along a nerve cell fiber constitutes an impulse. C) impulses are stronger responses than are action potentials. D) many impulses are required to cause one action potential.
When first focusing a microscope on a specimen, which objective lens should always be used first?
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You go see a scary movie. By the end of the movie your heart is racing thanks to high levels of epinephrine in your bloodstream. You ate nothing during the movie, but your blood glucose level is likely
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