Q: What are the "chemical messenger" molecules used by the endocrine system?


Read this paragraph and choose the correct option from the provided answers:

If you are a typical teenager, you like to eat. For your body to break down, absorb and spread the nutrients from your food throughout your body, your digestive system and endocrine system need to work together. The endocrine system sends hormones around your body to communicate between cells. Essentially, hormones are chemical messenger molecules.

 Choices:

- acids

- axons

- enzymes

- hormones


A:
hormones