Answer:
1. A tissue is a group of cells with a similar structure, organised to carry out specific functions.
2. The function of the circulatory system is to deliver oxygen and nutrients to cells takes away wastes.
3. the benefits are: reduced the risk of cancer
Heart rate
Memory e.t.c.
4. 60 minutes (1 hour)
5. dangerous driving and fighting
6. Exercising consistently and eating balanced diet
