What are the chemical messengers produced by the endocrine system called?
A. Hormones
B. Bronchioles
C. Muscles
A. Hormones
The correct answer is A. Hormones.
Hormones are chemical messengers that are produced by various glands in the endocrine system. These glands release hormones directly into the bloodstream, which then travel to target cells or organs. Once they reach their target, hormones bind to specific receptors and elicit a response or regulate various physiological processes in the body.
To find this answer, you could have turned to a biology textbook, an online educational resource, or used a search engine to look up information about the endocrine system and its functions. Additionally, understanding basic human anatomy and physiology concepts can help you make an educated guess even if you are not familiar with the exact terminology.