Embryonic stem cells! when given the chemical/hormone ques differentiate into all types of somatic cells.
Sand and glass have different chemical formulas, so that means that the atoms are rearranged and this is a chemical reaction.
A structure formed from molecules that combine to make up cells is called an atom.
Subsets of {dog, cat, fish} are Ф, {dog}, {cat}, {fish}, {dog, cat}, {dog, fish}, {cat, fish}, {dog, cat, fish}.
