How does crossing over add to the genetic diversity of sexually reproducing organisms? a: it involves segments of two homologous chromosomes trading places. b: it involves random segregation of the homologous chromosomes to each daughter cell. c: it involves fertilization of an ovum by any one out of millions of sperms.

the answer is B. it involves random segregation of the homologous chromosomes to each daughter cell

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.