The MRI machine allowing us to see how the brain reacts to different stimuli is one.
I believe it would be a because your body is stimulated to drink water when you are dehydrated
Living things need energy because "cells need energy without energy the cell cannot perform its functions to survive." In result the cells will die and when cells die that's not good for the organism. In conclusion, all living organisms need energy.
Hope this helps.
Answer:
Joint - a joint is where two bones articulate
In this case, the femur and tibia form a joint.