Across
- 4. Breaks down food.
- 5. facilitates gas exchange between cells and the environment.
- 6. secretes chemical signals that allow body systems to respond to environmental changes and to one
- 8. is responsible for the transport of materials through the body.
- 9. system allows us to perceive and respond to the world around us. This also includes our emotions and personality.
- 10. responsible for absorbing fat from the digestive system.
Down
- 1. system gives the body structure and allows us to move.
- 2. consists of either an exoskeleton, like mammals, or an exoskeleton, seen in insects and other arthropods.
- 3. facilitates the production of offspring.
- 7. extracts and excretes dissolved waste products.