The circulatory system is very useful. This system transports the food nutrients, and oxygen to the body cells. It also delivers of carbon dioxide and waste products. This helps the respiratory system by transporting nutrients to keep the lungs clean, and healthy.
Make it sound fun.
Help them come up with ideas to do
set goals
add a prize at the end to make them strive for.
Aster work on soft tissue and produce less waste
If this is true or false question. It is False.
