A hormone that can lower blood levels of calcium ion is
A) parathyroid hormone.
B) oxytocin.
C) thyroxine.
D) calcitonin.
E) glucagon.
D) calcitonin.
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If a person has a crush injury to the C3-C5 spinal segments, you would expect that he
A) might be unable to breathe on his own. B) could walk without difficulty. C) would have full range of motion in all extremities. D) would be in a coma. E) would have difficulty chewing and moving the tongue.
The simple knee-jerk reflex is an example of a(n) ________ reflex.
A. monosynaptic B. contralateral C. ipsilateral D. multisynaptic E. crossed-extensor
Ionic bonds break apart in water more easily than covalent bonds do.
Answer the following statement true (T) or false (F)
A cell’s complete set of DNA is called its ___________.
A. genetics B. genome C. proteome D. diploid E. chromosomes