The two primary gasses in the atmosphere are ____ and oxygen, which account for 78% and 21%, respectively, of the gaseous composition of the environment.

A. sulfur
B. nitrogen
C. carbon dioxide
D. carbon monoxide


Answer: B

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The process of transporting substances out of a cell is known as:

a. endocytosis b. diffusion c. exocytosis d. pinocytosis

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Computerized devices are used in optometry to ___________

A. detect glaucoma B. make cataract surgery more precise C. detect retinal tears D. All of the above

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Which anatomical area is a TRAM flap used to reconstruct?

a. breast b. hand c. lip d. palate

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Which of the following is/are the combining form(s) for "mouth"?

A) or/o B) stomat/o C) dent/o D) both a and b

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