Micronutrients Are Needed in Very Small Amounts Because ________

question 4

Multiple Choice

Micronutrients are needed in very small amounts because ________.

• A) most of them are mobile in the plant
• B) most serve mainly as cofactors of enzymes
• C) they play only a minor role in the growth and health of the plant
• D) only the most actively growing regions of the plants require micronutrients

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