Which type of synapse is most common in the nervous system?
A) chemical
B) electrical
C) mechanical
D) processing
E) radiative
Answer: A
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The primary function of eyebrows is to
A. form a protective barrier of fat and hair to help shade the eye. B. prevent excess light from entering the eye. C. prevent sweat from dripping into the open eye. D. prevent objects from striking the eye. E. allow the appropriate amount of light to enter the eye.
A ________ is a joint formed where a bony socket meets a cone-shaped bony process.
Fill in the blank(s) with the appropriate word(s).
Researchers are trying to determine the cause of circadian rhythm disruption in modern societies. They measured the hormone ________________ , which is associated with sleep-wake cycles in humans
Levels of this hormone are high at night and lower during the day. Fill in the blank with the correct word.
A(n) ________ reflex causes a finger to be moved out of danger extremely quickly after it comes into contact briefly with an extremely hot pot of chili.
Fill in the blank(s) with the appropriate word(s).