Across
- 1. The part which helps to transport oxygen, water and digested food to all parts of the body and removes carbon dioxide and waste materials from different parts of the body.
- 3. A small part of air which is needed for the survival of human.
- 7. The number of times the heart beats per minute.
Down
- 1. The part which enables blood to be transported to all parts of the body.
- 2. The blood rich in oxygen flowing from the lungs to the heart.
- 4. The organs which pumps blood to all parts of the body.
- 5. The substances produced by different parts of the body which have to be removed from the body.
- 6. The heart will beat at a slower rate compared to when she is running.