The lens of the eye
a. has convex surfaces.
b. is stronger when it is flatter.
c. contributes most extensively to the eye's total refractive ability.
d. two of these answers.
e. all of these answers.
A
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A mixed nerve consists of both __________ and ___________.
A. myelinated; unmyelinated fibers B. glial cells; nerve cells C. afferent; efferent fibers D. association; integration neurons E. spinal; cranial fibers
The ____________________ controls breathing, heartbeat rates, and reactions to visual and auditory stimuli
Fill in the blank(s) with correct word
On which type of neuron does saltatory conduction occur?
A. Nonmyelinated neurons only B. Myelinated neurons only C. Both nonmyelinated and myelinated neurons
Having the ability to ignore constant phasic stimuli is called ________.
A. tonic adaptation B. sensory adaptation C. phasic adaptation D. the law of specific nerve energies