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.
Learn also:
- How are small molecules transported?
- Why are circulatory disease harmful?
- How is food absorbed?
- How many times blood enters heart in one circulation?
- What is translocation?
- What is chemical process in digestion?