Answer:
Hormones are the body's chemical messengers. They carry information and instructions from one set of cells to another. The endocrine system influences almost every cell, organ, and function in the body.
It plays an important role in digestion by ensuring that food goes down the esophagus (foodpipe) and not the trachia (windpipe)........
Are there choice options given? if not, the answer would be a limiting factor
You would need more than natural phenomena for a scientific theory because a theory is a proposed explanation whose status is still conjectural and subject to experimentation, in contrast to well-established propositions that are regarded as reporting matters of actual fact.