oxygen
CO2 Carbon dioxide
Kidneys filter waste and excess substances from the blood to produce urine, while lungs extract oxygen from the air and remove carbon dioxide from the body through breathing. Kidneys also help regulate blood pressure and electrolyte balance. Lungs are essential for respiration and gas exchange in the body.
These substances are called products in English.
You are wrong! The digestive system produce enzymes and other substances!!!
Tobacco burns to produce various toxic substances. The addictive drug component is nicotine, but other by-products include Carbon Monoxide, Carbon Dioxide and a carcinogenic tar. Not only that, but the smoke paralyzes the cilia in the lungs, the same cilia that sweep the lungs clean of "various toxic substances."
Tobacco contains substances such as nicotine and tar that can stain the fingers with repeated contact. The tar in tobacco smoke can also accumulate in the lungs over time, leading to lung discoloration often referred to as "blackened lungs."
LUNGS
nerve cell produce protiens
Sputum
Your lungs.
Carbon monoxide