Reproduction


 * __Reproduction__**

This is the page for reproduction! Hope Mr Lin has no problems with it... Please do not delete this page... no matter what. What if the wikispaces is deleted? Won't the page be deleted with it? Besides, why did yoou even create this page when Mr Lin didn't tell you to??? Kai Ren OK, whatever. Just for your information, OK?? Isaac

In asexual reproduction, an individual can reproduce without involvement with another individual of that species. The division of a bacterial cell into two daughter cells is an example of asexual reproduction. Asexual reproduction is not, however, limited to single-celled organisms. Most plants have the ability to reproduce asexually. The evolution of sexual reproduction is a major puzzle. The first fossilized evidence of sexually reproducing organisms is from eukaryotes of the Stenian period, about 1 to 1.2 billion years ago. Sexual reproduction is the primary method of reproduction for the vast majority of macroscopic organisms, including almost all animals and plants. Bacterial conjugation, the transfer of DNA between two bacteria, is often mistakenly confused with sexual reproduction, because the mechanics are similar. A major question is why sexual reproduction persists when parthenogenesis appears in some ways to be a superior form of reproduction. Contemporary evolutionary thought proposes some explanations. It may be due to selection pressure on the clade itself—the ability for a population to radiate more rapidly in response to a changing environment through sexual recombination than parthenogenesis allows. Alternatively, sexual reproduction may allow for the "ratcheting" of evolutionary speed as one clade competes with another for a limited resource.
 * Reproduction** is the biological process by which new individual organisms are produced. Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction. The known methods of reproduction are broadly grouped into two main types: sexual and asexual.
 * Sexual reproduction** requires the involvement of two individuals, typically one of each sex. Normal human reproduction is a common example of sexual reproduction. It is characterized by processes that pass a combination of genetic material to offspring, resulting in diversity. The main two processes are: meiosis, involving the halving of the number of chromosomes; and fertilization, involving the fusion of two gametes and the restoration of the original number of chromosomes. During meiosis, the chromosomes of each pair usually cross over to achieve genetic recombination.

Information and More from: [], [] and [].

Other Articles (don't blame me): Human Reproduction [] and []. Reproduction in Plants [] and []

Isaac (glad to help!) [|**http://www.marinebiodiversity.ca/shark/english/reproduction.htm**]
 * __How Sharks Reproduce__**

[] You mean that sharks reproduce sexually, but why is there one case where a virgin shark reproduced asexually. [|Virgin Shark]

**How Aphids Reproduce**

Aphids reproduce by both asexual and sexual.

This is a video showing how asexual reproduction works.

[|http://videos.howstuffworks.com/hsw/23934-reproduction-aphids-video.htm] l

More information on aphids: []