An active hunter on the coral reef is a(n)

a. sponge.
b. cnidarian.
c. giant clam.
d. octopus.
e. crinoid.


D

Biology & Microbiology

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Burning of carbon-based fuels can produce which one of the following, an odorless gas that competes with oxygen for binding to hemoglobin.

A) carbon monoxide. B) hydrogen peroxide. C) sulfuric acid. D) methane.

Biology & Microbiology

Guanine and uracil are examples of nitrogenous bases.

a. true b. false

Biology & Microbiology

The glucose that enters glycolysis is split into two molecules of _______.

a) pyruvate b) NADH c) phosphate d) ATP

Biology & Microbiology

Some bacteria are resistant to erythromycin as a result of mutation of their ribosomal RNA. What type of resistance does this represent?

A) alteration of the target of the drug B) inactivation of the drug C) change in the permeability of the drug D) overproduction of an enzyme in a key metabolic pathway E) removal of the drug via a pump

Biology & Microbiology