Across
- 2. protection and support
- 4. this system gets rid of waste
- 7. this system involves contraction and relaxation
- 8. the system for gas exchange
- 9. systems that allow human to make babies
Down
- 1. larger molecules broken down into smaller one so they can be absorbed into the blood
- 3. the transport system in human bodies
- 5. this systems is all about glands and hormones
- 6. this system allows us to react quickly to our environment