Topic: Body Transport System Subtopic: What is blood?
What is quantity of re blood cells in blood?
Answer: In about every 1mm3, there are approximately 5 million red blood cells.
- Which enzyme acts on food in stomach?
- What is digestion?
- What is circulatory system?
- What are chances of smoker of getting lung cancer?
- Why is cold caused?
- How long is digestive tract?