This is falsered blood cells= carry oxygenwhite blood cells= help fight infection
platelets= prevent the loss of blood
The answer to 2-7 would be -5, but 7-2 would be 5, depends how specific one is trying to be.
Answer:
Rays having same endpoint E but not in the opposite directions are ED and EC. This pair of rays meet at point E having different directions.
Yes your equation is correct as formula for butane is c4h10 and equation is balanced