Topic: Body Transport System Subtopic: Diseases of the transport system
Why are circulatory disease harmful?
Answer: Circulatory diseases are harmful because they kill more people than any other disease does.
- At which side of chest is heart located?
- Some white blood cells do not eat bacteria what do they do?
- What are harmful effects of carbon dioxide?
- Why do not plants require huge amount of raw materials?
- What is inside heart?
- How are gases exchanged in plants?