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 atria and ventricles separated?
- What is thrombosis?
- How are xylem and phloem arranged in roots?
- How many times blood enters heart in one circulation?
- What is pulmonary vein?
- What happens if sufficient oxygen is not present?