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.
- How is heart transplant done?
- What are companion cells?
- What are capillaries?
- What is active transport?
- What is vascular bundle?
- What is mechanical process in digestion?