Question

The endocrine system sends chemicals called __________ through the __________ to change short-term and long-term activities in the body.

Answer 1

Answer: The endocrine system sends chemicals called hormones through the bloodstream to change short-term and long-term activities in the body

Explanation: Endocrine system is a system made up of glands that produce and secrete chemical signal called hormones which travel through the bloodstream to the target cell where they exert their effects.

A hormone is a chemical messenger secreted by an endocrine gland. Long-term activities in the body influenced by hormones include growth and development.