Topic: Food Energy and Respiration Subtopic: Introduction
What is alveolus?
Answer: Alveolus is also known as air sac. Alveolus is the origin where gaseous exchange takes place. Blood vessels are present in alveolus.
- Where do gases enter and leave plant?
- What is photosynthesis?
- What happens if sufficient oxygen is not present?
- What is meant by aerobic?
- What are platelets?
- What is aerobic respiration?