Which processes..? There is not enough information for a solid answer to be given.
B) Cell wall
The cell wall is a structure important cell protection and shape. It is necessary for the survival of unicellular organisms
A see saw is a simple machine.
Answer:
The skin is superficial to the bones.
Don't quote me on it but I believe the first one was Democritus in the time of Ancient Greece. At the time he had no evidence though, just a lucky guess made by him.
