Which describes a characteristic of free radicals?
A. They rapidly oxidize other atoms by removing an electron.
B. They are inert molecules that don't interact readily with other molecules.
C. They contain two electrons in the outermost orbital.
D. They have extra neutrons in their nuclei.
E. They are found in high quantities in most sports drinks.
A
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The cerebellum is __________ to the cerebrum.
A. superficial B. deep C. caudal D. rostral E. medial
__________ are the photoreceptors responsible for color vision.
Fill in the blank(s) with the appropriate word(s).
Which muscle connects the ribs and sternum to the pubic bones?
A) external intercostals B) external oblique C) transversus abdominis D) rectus abdominis E) diaphragm
Voluntary motor impulses leave the spinal cord via the ________ of gray matter.
A. anterior column B. posterior column C. anterior horn D. lateral horn E. posterior horn