Imagine You Are Comparing the Nutrient Content of Phloem Sap

question 145

Multiple Choice

Imagine you are comparing the nutrient content of phloem sap from three plants: one with rhizobial root nodules, one with mycorrhizae, and one with neither (bare-root) . Which of the three phloem samples would you expect to have the HIGHEST phosphorus content?

• A)Phloem sap from the mycorrhizae sample will have the most phosphorus.
• B)Phloem sap from the bare-root sample will have the most phosphorus.
• C)Phloem sap from the sample with root nodules will have the most phosphorus.
• D)The amount of phosphorus in the nodulated and mycorrhizal samples will be higher than in the bare-root sample.

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