Respuesta :
The correct answer is: Endocrine system.
Explanation:
- The Endocrine system is comprised of a number of glands which synthesize and secrete bio-chemical signals directly into the blood stream.
- These bio-chemical signals are made of peptides, proteins or steroids and are called Hormones.
- These hormones act on the target organs or tissues which are usually located far away from the site of production or synthesis of the hormone.
- They can act on only those organs which have the receptors capable of recognizing the hormone.
- They are responsible for regulating growth, development, metabolism, reproduction, sleep and other short and long term activities in the body.
- Their production and synthesis is highly regulated and small quantities of these chemical messages are capable of bringing about drastic response in the cells, tissue, organs or the whole body.
