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.
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- What is cross-pollination?
- What is diarrhea?
- What is main job of white blood cells?
- Which vessel carries blood to lungs?
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