What do fungi contribute to the survival of lichens?
a. trap solar energy
b. protect the partnership from air pollution
c. provide the motility needed to relocate when conditions become unfavorable
d. promote rapid growth of the overall structure
e. absorb and retain water
E; The fungi allow the algae to grow in places where they might not otherwise be able to by supplying them with water and protection. The algae supply energy by photosynthesis (choice a). The whole structure grows slowly (choice d), cannot itself pack up and move (choice c), and is quite susceptible to air pollution (choice b).
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Name a place in the human body that is particularly acidic. Where are fluids close to neutrality? Where are fluids in the human body particularly basic?
What will be an ideal response?
What product of the light-dependent reactions is released directly into the environment?
a. O2 b. electrons c. NADPH d. ATP e. hydrogen ions
Immunotherapy is the
A. administering of preformed antibodies. B. use of antitoxins. C. conferring of passive immunity. D. use of immune serum globulin. E. All of these choices are correct.
Which of the following is NOT involved in the regulation of the lac operon?
A. an inducer B. a repressor protein C. an miRNA D. glucose E. cyclic AMP