Breaking the body into systems is in most cases a lot easier for the students to understand instead of just doing it all at once
Please note I can only make out some of this, so here's the answers I can see-
Answer #5:
Left atrium, right atrium, left ventricle, right ventricle.
Answer #10:
1.2-1.5 gallons.
Answer #8:
White blood cells fight and kill off diseases.
I'll add more as I get it
EDIT!
Answer #4:
They assist in clotting your blood
Answer #14:
O, B, A, AB.
D. seems the best to me so hope it helps
Answer:
Synergy:
1. When 2 people Go towards a goal that is the same.
___________________________________________
Energy:
1. involves motion and movement.
Explanation:
Probably spreading depends on the context you probably should add
