Which one of the following is not one of the functions of the kidneys?
a) convert vitamin d from its inactive to its active form
b) regulate blood volume
c) produce hormones that assist in digestion
d) dispose of metabolic waste products manufacture urine

c

Explanation:

kidney has never produces hormones that helps in digestion,but it help in the removal of excessive water and urea in the body of a living animal or a human

The branch of science which deals with a living being is called biology.

The correct answer is C.

The functioning of the kidney is to regulate the amount and concentration of urine.

The kidney also helps in regulating the blood volume by filtering it and also helps in the conversion of vitamin D to its active form.

Digestion is a process in which the conversion of food molecules into smaller units. The enzyme is required to the digesting the food and the enzyme is synthesis by the glands and the kidney is not a gland.

Hence, the correct option is C that produces hormones that assist indigestion

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