A "pilus" is another term for what?
A. A hair
B. A hair's growth center
C. A muscle that moves a hair
D. A sensory nerve fiber around the base of a hair
E. A gland associated with a hair follicle
A. A hair
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The events leading to skeletal muscle contraction are initiated by the neurotransmitter __________.
Fill in the blank(s) with the appropriate word(s).
Vitamin B12 deficiency can cause a bleeding tendency because of incomplete activation of vitamin B–dependent clotting factors
a. True b. False Indicate whether the statement is true or false
Which hormone promotes gluconeogenesis as a way to increase blood glucose levels?
A) insulin B) cortisol C) melatonin D) aldosterone
Maureen is hiking in the cold, and to maintain homeostasis her body begins to
A. increase heat loss from the skin. B. release chemicals to initiate a high fever. C. shiver. D. reduce her blood pressure. E. vasodilate vessels in her head and neck.