1.
a chemical secreted by an endocrine gland or some nerve cells that regulates the function of a specific tissue or organ
2.
a substance synthesized by plants that regulates their growth and development
3.
a substance produced in the body of an insect that regulates various aspects of growth and development such as the change from larva to adult
4.
a synthetic chemical that acts like a hormone
5.
a chemical substance produced in animals and plants that controls things such as growth and sexual development
1.
a chemical secreted by an endocrine gland or some nerve cells that regulates the function of a specific tissue or organ
2.
a substance synthesized by plants that regulates their growth and development
3.
a substance produced in the body of an insect that regulates various aspects of growth and development such as the change from larva to adult
4.
a synthetic chemical that acts like a hormone
5.
a chemical substance produced in animals and plants that controls things such as growth and sexual development