Answer:
The Immune system is a complex network of cells (such as lymphocytes) and organs that work together to defend the body against foreign substances (antigens) such as bacteria, a virus or tumor cell.
Hope this Helps!!!
They are all made of tissue and cells.
Make pneumatic devices or acronyms about the certain laws or make flash cards
Answer:
A
Explanation:
Carbohydrates give energy and if your low in them then you will have less energy.
