Programmed Theories - it suggests that our body is designed to age and that there is a timeline that our bodies follow, and switch in our genes that switches off over time.
Error Theories - we age because of environmental hazards that our bodies accumulate over time.
Answer: Microscopic organisms are not made of cells.
All things that are living are made of cells.
Answer:
1st ans is oil(petrol)
2nd ans is natural resource
3rd ans is non renewable energy source
4th ans is renewable energy source
5th ans is coal
Explanation:
The exchange takes place in the millions of alveoli in the lungs and the capillaries the envelop them. Inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.