It Has Been Hypothesized That Fungi and Plants Have a Mutualistic

question 8

Multiple Choice

It has been hypothesized that fungi and plants have a mutualistic relationship because plants make sugars available for the fungi's use. What is the best evidence in support of this hypothesis?

• A) Radioactive label experiments show that plants pass crucial raw materials to the fungus for manufacturing sugars.
• B) Fungi associated with plants have the ability to undergo photosynthesis and produce their own sugars, while those not associated with plants do not produce their own sugars.
• C) Radioactively labeled sugars produced by plants eventually show up in the fungi they are associated with.
• D) Fungi survive better when they are associated with plants.

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Definitions:

Placebo

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Dependent Variable

The variable in an experiment that is expected to change in response to manipulations of the independent variable.

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