True. All living organisms are
believed by today’s findings in biological origin as evolved from another cell,
pre-existing cell or living organism with reference to law of biogenesis. In many
evolutionary approaches, experts suggest that all organisms evolved from a
single prokaryotic cell and then progressed in after a many millennia to
eukaryotic cells, and as to why animals either fish, birds, mammals and etc.
came from two distinctive cells that has evolved to as now known as the animal
cell.
