It is thought that viruses may have originated
from cells because
a. of their small size.
b. they are pathogens.
c. they can only replicate within a host cell.
d. they do not have organelles.
e. more than one of these
C
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Oxidation and reduction reactions are chemical processes that result in a gain or loss of:
A. atoms. B. neutrons. C. electrons. D. molecules. E. protons.
Two species utilizing the same food source is an example of ____
a. coevolution b. mimicry c. interference competition d. exploitative competition e. mutualism
Complement is a complex defense system that results, by way of a cascade mechanism, in the formation of a membrane attack complex that kills cells by creating holes in their membranes.
a. true b. false
Which of the following tests works by detecting viral nucleic acid?
A) ELISA B) PCR C) Agglutination with beads coated with viral antigens D) Agglutination with beads coated with either antibodies or antigens E) Agglutination with beads coated with antibodies to the virus