Across
- 4. - what is a chemical that comes from the breakdown of proteins.
- 5. -What are tiny structures that removes waste from the blood and produce urine.
- 8. -Is a serious disease that destroys lung tissue and cause difficulty in breathing
- 10. -The dark sticky substance that forms when tobacco is burned
- 11. -A large dome shaped muscle that plays an important role in breathing
- 12. - The kidney help maintain homeostasis by regulating the amount of ___ in the body.
- 14. -___ are most than likely to have heart attack.
- 15. -Oxygen passes through the wall of the ___ and then through the capillary wall into the blood.
Down
- 1. -___ is a drug that speeds up the activity of the nervous system, heart and other organs.
- 2. - The air moves into the ___
- 3. -Is a colorless odor less chemical.
- 6. -body that collects waste
- 7. -The fact or condition of being addicted to a thing, activity, or substance.
- 9. -After flowing through the nasal cavities, air enters the ___ or throat
- 13. -Urine flows through two narrow tubes called?