Topic: Body Transport System Subtopic: What is blood?
What is blood?
Answer: Blood is a living tissue and one drop of it contains approximately 5 million cells. Blood contains four major types of components i.e. red blood cells, white blood cells, platelets and their medium, plasma.
- How does air enter our lungs?
- What is osmosis?
- How much is life of red blood cell?
- What are products of respiration?
- What are varicose veins?
- What happens if excess lactic acid is produced?