The difference between drugs and medicines is pretty basic, but a lot of people often interchange them. The main thing that differentiates them are their legality and society's perception of them. Both are used for the treatment or cure of diseases, but drugs have a more stimulating and addictive effect to the body than medicine. On the other hand, medicines generally don't have such effects.
True because you sure buy marijuana know it is illegally drugs
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.
Hi! I would describe this component in my own words by saying component is flexibility by saying that the three components of flexibility are muscle elasticity and length, joint structure and nervous system. Yes, these components of fitness are very important as they help us do the things in our daily lives. I would say the nerve system is more important than the rest with the joint structure coming in second place. We need the nervous system because they they transfer nerve impulses between the parts of our body. I hope this is what you were looking for, Goodluck!