A: an ecosystems organisms become larger as succession
Answer:
Fast-Twitch Fibers: baseball pitching
Slow-Twitch Fibers: long distance swimming, long distance running
Doctors inject medicines in veins because veins are more accessible and donot have high pressure due to which there is no risk of blood backing up with into the infused fluid.
However there are some cases when medicine is injected in artery but a lot of precautions needs to be taken while doing so.
