Which of the following is true about hormones?
A) They affect only non-hormone-producing organs.
B) They remain at constant concentrations in the blood.
C) They are produced by the exocrine glands.
D) They are carried to all parts of the body by the blood.
E) They are made up only by amino acids.

Question

Quizplus · Accepted Answer

Hormones are chemical messengers produced by endocrine glands that are carried by the blood to all parts of the body, where they can exert their effects on various tissues and organs.

Which of the Following Is True About Hormones