Topic: Human Digestive System Subtopic: Problems with digestive system
What is constipation?
Answer: Constipation is a condition when faeces in the rectum turns thick, hard and dry. It gets difficult for the anus muscles to egest the faeces.
- Why are circulatory disease harmful?
- What could be an example of diffusion?
- How does blood move?
- What is alveolus?
- What is meant by leaking of heart valves?
- What is anaerobic respiration?