Do you have choices to choose from? If mechanical weathering is in the choices (if you have them) then it would be mechanical weathering
The answer is A, because the 'filling' is the jelly like cytoplasm and the edge is the cell wall
The exchange between sensory information and motor information happen when the skin on your toes step the sharp tack.
After this happen, the nerve on your skin will send information to your sensory nervous system so your body could react accordingly<span />
I think it might be C I am not 100% sure though
A spring surface. hope that helped
