What type of cells are simple animal and plant cells? White blood cells

Specialized cells

Unspecialized cells

Red cells

Stem cells are simple, unspecialised cells found in animals and plants that have the ability to divide to form cells of the same type. They can also differentiate into a variety of specialised cells. Stem cells can be harvested from embryonic umbilical cord or adult bone marrow.

a polymer is a chainlike molecule made up of small molecular units. these small molecular units are called monomers. monomers of polymer can be joined together either naturally or synthetically.  

what's the rest of the question