How are the messages of the endocrine system moved around the body?

The correct answer is - through the blood stream with help of hormones.

Explanation:

The endocrine system is the group of the glands or the organs that produce different type of the hormones to maintain homeostasis of the body, regulate metabolism, sexual function, cellular function, growth and development and all other essential functions.

All these hormones are secretes by the specific organs or the glands directly in the blood stream and travel to the target cell or organ.

Thus, the correct answer is option -  through the blood stream with help of hormones.

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

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