divide by mitosis English English cleavage cleavage embryonic division English Cleavage cleavage Cleavage (embryo) English Cleavage (embryo) – Wikipedia reading 1 English English English embryonic division cleavage English Cleavage (embryo) rotational cleavage cleavage cleavage English pattern of division divide by mitosis cleavage cleavage cleavage English http://en.wikipedia.org/wiki/Cleavage_(embryo) English