Question at position 37 Which of the following statements about hormones is false?Hormones influence metabolism in target cells.Hormones are chemical messengers.Hormones are produced by endocrine glands.Hormones are always made of proteins.单项选择题

A

Hormones influence metabolism in target cells.

B

Hormones are chemical messengers.

C

Hormones are produced by endocrine glands.

D

Hormones are always made of proteins.

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