Across
- 3. the study of the function of living things
- 4. for the production of sweat
- 6. the study of the structure of organisms
- 7. reddish-brown organ located below the diaphragm
- 8. bean-shaped organ for removing waste products by urine
Down
- 1. the balance within an organism; its stable condition
- 2. gaseous waste released from exhaling
- 5. bag-like organs for breathing