unspecialized cells (constantly dived & replicate)

can differentiate into any type of cell

differentiates into many types of cell

differentiate into a few closely-related types of cell

can regenerate but can only differentiate into their associated cell type

an extra ordinary large cell

very large with many nuclei & a continuous cytoplasm 

All living things compose of cells & is smallest unit of life & only comes from other cells

maintenance & regulation of internal cell conditions

the removal of metabolic waste