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.
- What happens to proteins in liver?
- What happens after white blood cell eats bacteria?
- Why are plant roots important?
- Which blood vessel carries blood and where?
- What is ovary?
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