An example of a glycocalyx is
A. a capsule
B. a pilus
C. an outer membrane
D. a cell wall
Ans: A. a capsule
Biology & Microbiology
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The rickettsial parasite Wolbachia pipientis can
A. enhance the life-span of an infected wasp. B. sometimes alter the sex of an infected wasp. C. confer toxicity to the sting of an infected wasp. D. None of the choices are correct.
Biology & Microbiology
All chordates have (a) _____
a. backbone c. notochord b. jaws d. both jaws and notochord
Biology & Microbiology
Binding of a protein hormone may lead to formation of a __________, which relays a signal into the
cell. Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
A soldier ant dies defending the ant colony from invading termites. Which term best describes this event?
a. suprachiasmatic protection b. sociobiology c. ultimate cause d. inclusive fitness
e. altruism
Biology & Microbiology