Asexual Reproduction

Asexual reproduction, also known as vegetative reproduction, is when an organism shows a single cell or pieces of the body of an individual and developed by mitotic processes, is capable of forming a complete individual genetically identical to it. You have to mention in your research paper that it can be conducted with one parent and without the intervention of the nuclei of the sex cells or gametes. Asexual multiplication only in those organisms whose cells still retain the embryonic totipotent, ie, the ability not only multiply but also to differentiate into different cell types to achieve the reconstruction of parts of the body that may be missing. Since totipotent embryo is far more common is the simplest animal, however, it occurs in sponges, annelids, echinoderms and in the states of all embryonic and larval animals.

Among the advantages of inherent biological division are its rapidity and simplicity, because they do not have to produce sex cells, or have to expend energy in the pre-fertilization. In this way a single individual can lead to a large number of descendants, including through the formation of asexual spores, transverse fission or budding, to facilitate rapid colonization of new territories. Thus, some agencies are reproduced asexually when environmental conditions are favorable, while it does when they are sexually effects. On the other hand, has the great disadvantage of producing offspring with genetic variability, clonal, being genotypically equivalent to its parent and each other. Natural selection can not "choose" the best adapted individuals (as we all are alike) and these individual clones may fail to survive a half so hostile to change, then do not possess the genetic information necessary to adapt to this change. Conclusion that can be drawn in your essay is that this species may disappear unless there is an individual carrying a genetic combination that allows you to adapt to new environment.