Historical Examples. 1  Not till the third day commence the first geological operations. 2  It is understood that Col. Lawrence will commence this benevolent and patriotic work in the spring or early summer. 3  At daybreak on the 14th M. de Villeroy sent word to M. du Maine to commence the action.
Since Animalia also means animal and animals are made of more than one cell, yes, the kingdom Animalia is multicellular.
Most of the animalcules are now referred to as unicellular organisms though he observed multicellular organisms in pond water. He was also the first to document microscopic observations of muscle fibers, bacteria, spermatozoa, and blood flow in capillaries (small blood vessels).