What are the four aspects of invasion game

Describe two habits that can you move toward achieving your goals.

Esther works at a large hospital where she plans food service programs she monitors an records information regarding patients diets and intake and is devoloping a new meal plan that addresses several different dietary needs for many types of patients esther enjoys her work as she feelss that she is patients develop healthier habits

Why do you need two different circuits of blood vessels in your body?