Question

Which of the following statements best describes the role of hormones in the body?
Hormones send chemical signals throughout the body to regulate other body processes.
Hormones are chemical signals that are sent throughout the body to regulate other body processes.
Hormones send electrical signals throughout the body to regulate other body processes.
Hormones are electrical signals that are sent throughout the body to regulate other body processes.

Answer 1

"Hormones are chemical signals that are sent throughout the body to regulate other body processes."

This is best because hormones themselves are chemicals released by endocrine glands that travel (often via the bloodstream) to target tissues and regulate physiological functions.