An organic nutrient that cannot be synthesized by the organism and must be provided is called a/an: A. element. B. macronutrient. C. water. D. growth factor. E. trace element.
Question
An organic nutrient that cannot be synthesized by the organism and must be provided is called a/an:
A. element.
B. macronutrient.
C. water.
D. growth factor.
E. trace element.
Solution
The correct answer is D. Growth factor.
Growth factors are organic nutrients that an organism cannot synthesize on its own and therefore must be provided externally. These are often vitamins or amino acids that the organism needs for various functions, including growth and development.
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