Basic Processes
SCI/230
January 30, 2012

Reproduction Germs reproduce asexually by using a method called binary fission in the prokaryotic cells and in mitosis. Germs split into two different creatures within the colony each cell exist apart from the other. Grasshoppers reproduce by copulating end to end and insert its aedeagus into the ovipositor to deliver his sperm. They reproduce by laying eggs, which are fertilized within the female grasshopper. The eggs contain a yoke for nourishment in the embryo each egg is covered by a shell that has terminal pores giving the sperm access to the eggs for fertilization. The male and female grasshoppers do not care for the eggs. Some fish reproduce by laying eggs and some fish reproduce by live bearing depending on the species. Some fish have male and female sex organ to reproduce without physical contact. Most fish lay eggs so the male fish can fertilize if she accepts the male. The eggs are fertilized by ejaculating their sperm at the eggs.

Bears reproduce by physical contact the male just like humans. The male bear copulates inside the female fertilizing her egg, which develops into an embryo then into a fetus. The fetus is covered with membranes and fluid. According to Pruitt and Underwood (2006), “If egg and sperm each donate an equal number of chromosomes to the new embryo, then in the absence of other mechanisms, the chromosome number of each succeeding generation would exactly double.” The fact is that every living thing can reproduce differently depending on the type of species but all species develop eggs.

References
Pruitt, N. L., & Underwood, L. S. (2006). Bioinquiry Making connections in biology (3rd ed.). Hoboken, NJ: John Wiley & Sons, Inc..