If fungi of the genus Cordyceps are ingested by insects, fruiting bodies from the fungi will form and erupt through the bodies of the insects and then kill the insect hosts. Since Cordyceps are using the insects as a host for growth and dispersal, these
fungi are an example of
A) symbiosis.
B) parasitic fungi.
C) lichens.
D) mycorrhizae.
Answer: B
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Which process occurs during photosynthesis?
A) The light reactions produce NADP from sunlight energy. B) Carbon dioxide reacts with 5-carbon molecules during the Calvin cycle. C) ATP is released at the end of the Calvin cycle. D) Water captures the electrons released from excited chlorophyll pigments.
An X-linked recessive gene (c) produces red-green color blindness. A normal woman whose father was color blind marries a color-blind man. What are the chances that the first son will be color blind?
A. 0% B. 25% C. 50% D. 75% E. 100%
All of the following are associated with the streak plate method of isolation EXCEPT:
a) a solid medium in a Petri dish b) colonies growing at and below the surface of the medium c) a sterile inoculating loop or needle d) isolation of CFU's from one another
True/False: A drug with high selective toxicity would likely have a low therapeutic index.
What will be an ideal response?