Which of the following is NOT associated with lichens?
a. primary producers in the arctic tundra
b. monitoring of air pollution
c. creation of soil from bare rock
d. enhanced photosynthesis on trees with lichens
e. nest building material for many birds
D
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Fungi that grow as yeasts at one temperature but as molds at another temperature are called ________.
A. saprobes B. spores C. pseudohyphae D. parasites E. dimorphic
At the end of cellular respiration, oxygen combine with electrons of a very low energy level. How are the specific
properties of oxygen beneficial to the organism that uses it as a final electron acceptor?
a. Oxygen is highly reactive and readily accepts electrons. b. Oxygen is strongly electronegative and helps pull the electrons through the electron transport chain. c. Oxygen allows a maximum output of energy for ATP synthesis. d. Oxygen is the only molecule that can act as a final electron acceptor. e. Oxygen is highly reactive and readily oxidizes methane.
Lipophilic hormones are transported in blood ________ and bind to receptors located ________.
Fill in the blank(s) with the appropriate word(s).
Species A and species B both benefit by living together. This is an example of
A. competition. B. commensalism. C. mutualism. D. succession.