All living things are made up of cells. Because they are small in size does not mean that their cell size is small. Generally cells are the same size between organisms.
No, all multicellular organisms have the same size cells.
Bacteria , microorganism ,
"Small" and "large" intestine refer to the overall diameter of the 'tube'.
People are small because if alot of there family members are small they can come out like that also.