The exchange of gases between the lungs and the blood occurs by the process of


Select one:
a. diffusion.
b. osmosis.
c. filtration.
d. active transport.
e. ionic bonding.



a. diffusion.

Biology & Microbiology

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Agar is derived from

(a) red algae. (b) brown algae. (c) green algae. (d) all of the above.

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The word evolution, as used in biology, literally means

a. natural selection. b. genetic drift. c. divergence. d. genetic change. e. mutation.

Biology & Microbiology

Halophiles grow equally well in the presence or absence of high salt concentrations

Indicate whether the statement is true or false

Biology & Microbiology

The production and usage of a gene's product is called gene ____ .

Fill in the blank (s) with the appropriate word(s).

Biology & Microbiology