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Question: SECTION II. SHORT PARAGRAPH QUESTIONS (25m) Answer each of the
following four questions in full s…


SECTION II. SHORT PARAGRAPH QUESTIONS (25m) Answer each of the
following four questions in full sentences. Do not use point form.
(9m) The great majority of land plants establish mycorrhizal
associations with fungi, in which there is a two-way exchange of
nutrients between the plant and the mycorrhizal fungus. Host plants
provide mycorrhizal fungi with sugars, while mycorrhizal fungi
provide host plants with soil phosphorus. a. Design an experiment
to test whether Douglas-fir seedlings grow more quickly in soil
containing mycorrhizal fungal spores. Make sure that you state your
null and alternate hypotheses, list your dependent and independent
variables, describe your experimental setup (including control and
experimental treatments), list your controlled variables
(explaining how each will be controlled and why), and provide
replication. b. Assuming that the results of the experiment support
your alternate hypothesis, draw a graph to predict what the
resulting data would look like. Don’t forget to label your
axes!

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