Across
- 2. function related to making offspring
- 3. organs involved in gas exchange
- 6. chemicals released by the endocrine system
- 8. first system involved in nutrition
Down
- 1. system that moves blood and nutrients through the body
- 4. system involved in support and movement
- 5. function related to reaction to the outside world
- 7. structure made of tissues that functions in the body