The stretch reflex
a. is an adaptation that enables humans to hold objects steadily for extended periods if time.
b. is activated by stretch-sensitive receptors inside the muscle spindles.
c. is a simple, stereotyped, and repeatable motor action.
d. is elicited by a sensory stimulus.
e. all of these
E
Biology & Microbiology
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A(n) ________ is an enlarged lymph node that appears during cases of the plague.
Fill in the blank(s) with the appropriate word(s).
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The main osmoregulatory and excretory organ in most vertebrates is the:a
skin. b. gill. c. metanephridium. d. lung. e. kidney.
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Where does the expression of a protein begin?
A) in the nucleolus B) in the nucleus C) in the cytoplasm
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The innate immune system consists of?
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