Water molecules move across cells by
A) osmosis.
B) primary active transport.
C) secondary active transport.
D) activity of the sodium-potassium pump.
E) phagocytosis.
A
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The hyperpolarization that occurs at the end of an action potential is due to the prolonged
A. open state of chemically gated sodium channels. B. open state of voltage-gated sodium channels. C. closure of chemically gated sodium channels. D. closure of voltage-gated potassium channels. E. open state of voltage-gated potassium channels.
Essential vitamins must be provided in the diet
Indicate whether this statement is true or false.
Lymphatic ________ are formed from the union of the largest collecting vessels.
Fill in the blank(s) with the appropriate word(s).
What joint actions of the foot are common to the tibialis posterior, flexor digitorum longus, and flexor hallucis longus muscles?
a. Eversion and plantarflexion b. Inversion and dorsiflexion c. Inversion and plantarflexion d. Eversion and dorsiflexion