Which of the following is NOT a function of the nasal cavities?
a. filter dust out of the incoming air
b. detect odors
c. warm the air
d. oxygenate the blood
e. moisturize the air
D
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DNA is found in its condensed form known as a chromosome in which of the following stages of the
cell cycle?
a. prophase only b. prophase and metaphase c. interphase d. throughout the cell cycle e. throughout mitosis until late telophase
Pepsin is a digestive enzyme that _____
A) is manufactured by the pancreas B) helps stabilize fat-water emulsions C) splits maltose into monosaccharides D) begins the hydrolysis of proteins in the stomach E) is denatured and rendered inactive in solutions with low pH
These are the smallest functional units of matter that form all chemical substances and that cannot be further broken down by ordinary chemical or physical means.
A. protons B. neutrons C. electrons D. atoms E. molecules
Transcription starts at a region of DNA called a(n) _____________.
A. sequencer B. promoter C. activator D. terminator E. transcriber