When cations and anions meet, they
A) repel. B) form covalent bonds.
C) form ionic bonds. D) form individual molecules.
C
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Which of the following is not considered an embryonic membrane?
A. The yolk sac B. The placenta C. The allantois D. The chorion E. The amnion
In divergence,
a. many presynaptic neurons synapse with one postsynaptic cell b. one dendrite contacts many presynaptic neurons c. action potentials initiated in the axon diminish as they spread to axon terminals d. one axon synapses with many other cells e. many axons spread out from one cell body
How many neurons are used to connect the central nervous system to an effector in most autonomic nervous system pathways?
A. One B. Two C. Three D. Four
The term cerebral lateralization refers to the fact that
A. the two hemispheres control only the opposite side of the body. B. the two hemispheres mature at the same time. C. the two hemispheres are identical anatomically. D. each hemisphere is specialized for certain tasks. E. the right hemisphere controls only the right side of the body.