Topic: Body Transport System Subtopic: The Heart
Why is heart useful?
Answer: A pump is needed to send blood around the body. This is the job of the heart, that is why heart is very important due to its strong muscular walls and pumping action.
- What is sequence of transport of food?
- Where do gases enter and leave plant?
- How does tar damage lungs?
- What happens if excess juice is secreted in stomach?
- Where is faeces stored?
- What happens to excess amino acids in liver?