A Researcher Analyzes the Mineral Content of a Particular Grass

question 34

Multiple Choice

A researcher analyzes the mineral content of a particular grass and is surprised to find substantial levels of uranium in both leaf and root tissues. The most likely explanation for this finding is that

• A) uranium is an essential nutrient for this grass.
• B) the plant has a mutation in its active transport proteins.
• C) there is a higher than usual concentration of uranium in the soil.
• D) uranium is substituting for some other essential nutrient.
• E) uranium is being supplied by mycorrhizae.

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