Question
Question: Hormones are regulatory molecules secreted by the endocrine systems in vertebrates. Which of the fol...
Hormones are regulatory molecules secreted by the endocrine systems in vertebrates. Which of the following statements is NOT TRUE for hormones?
A
Hormones are secreted into the blood circulation system and they act on target organs.
B
Amino acids are precursors for some hormones
C
Hormones can act on the organ that secretes them
D
Hormones are always short-lived molecules.
Answer
Hormones are always short-lived molecules.