Topic: Body Transport System Subtopic: Diseases of the transport system
What are varicose veins?
Answer: Varicose veins are caused when the valves of the vein does not work properly. This causes whens to swell up.
- What is diarrhea?
- What is translocation?
- How minerals salts are taken up?
- Why does constipation occur?
- What gas is present in cigarette?
- What are harmful effects of carbon dioxide?