If a response decreases a disturbance, the control system is classified as a ________ feedback system
A) deficit
B) negative
C) neutral
D) polarized
E) positive
B
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Which of the following is known as the study of microscopic one-celled organisms, multi-celled organisms, plants, animals, and humans??
A) ?Biology B) ?Anatomy C) ?Physiology
Which of the following muscles causes flexion at both the knee and hip, and allows a person to cross the legs while seated?
A) rectus femoris B) vastus intermedius C) gracilis D) sartorius
Which of the following ions is essential to muscle contraction?
A) acetylcholine B) sulfate C) calcium D) sodium E) chloride
Synergism occurs when
A) hormones working together produce a larger effect than predicted. B) a hormone can exert its full effects only in the presence of another hormone. C) one hormone inhibits the release of a second hormone. D) hormones working together produce a smaller effect than predicted. E) one hormone triggers the secretion of a second hormone.