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.
- Why is it better to breathe through nose?
- What is job of platelets?
- What are harmful effects of carbon dioxide?
- How is flu treated?
- What is photosynthesis?
- What are stomata?