Volvox was formerly classified as a complex colony, but now scientists classify it as a multicellular organism. How is Volvox different from a colonial species like Scientism\'s What are the structural differences and similarities between Elodea (plant) and human cheek cells (animal)? Compare the check cell and the amoeba. How are they similar? What do amoebas have that cheek cells don\'t? Cheek cells come from a highly complex multicellular organism; why are they so simple compared to the amoeba? Solution Answer :-Q7:-volvox is a colonial alga of fresh water. Here the number, position, shaped is definite and is called coenobium. Volvox is motile. The other colonial alaga like scenedesmus are non motile and here the number, position and shape of cells need not be fixed..