User:Israel.tharpe/sandbox

hello world good to be on wiki. I'm excited to learn all I ca about this amazing research tool.

Wiki Topic ideas for additions
Methods biologists use to determine whether an organism is primitive or derived. Talk about cladistics and how this works in classifying organisms. with the above article that I cited, I found this phylogenetic book on galileo. I think this article will serve well to assist me making delineations between primitive and derived characters in terms of how biologist make these distinctions when determining evolutionary relationships. Particularly chapter 5 on characters and homology will be useful This second cited source above was also found on galileo. This source will be helpful to make additions pertaining to my second addition idea of cladistics. this book covers cladistics extensively and will assist me in displaying the manner in which organisms are classified

Phylogenetics is utilized by biologist, researchers to determine the evolutionary relationships and relatedness, to ultimately depict an accurate evolutionary lineages. these lineages can thereby be portrayed through a phylogenetic tree, where varying relatedness amongst species is evidently depicted. Furthermore, through the phylogenetic tree, researchers are also capable of viewing the changes and evolutionary alterations occurring in a species over time as they move from primitive characters to varying derived character states. I can use info from the 1st book I have cited pg 8 #4 phylogenetic systematics. I can also get more info on primitive and derived characters from pg 107

In phylogenetics a character is defined as an intrinsic property of an organism. Due to the vast variety of characters to choose from when describing the characters of an organisms, a few key deligniations are made to discern phylogeneticly informative and phylogenetically uninformative characters. The primary distinctions being heritability of the character and relative variation of a character within and between species. For use in systematics to depict evolutionary relatedness amongst organisms it is beneficial to discern shared characters between organisms. typically a character is considered useful systematically if it is heritable, thereby, showing the passing of genetic information encoding specified characters from parent to offspring. The amount of variation in a character within a species is useful as well. the amount of variation of characters can assist in depicting greater relatedness amongst species, and conversely show the lack of relatedness between species. analysis of character variation also aids in distinguishing primitive characters from derived characters. The term derived and ancestral is used in reference to characters and character state. In doing so, a derived character is depicted as a character procured through evolution from the previous ancestral state, and persisting due to fixation of derived alleles. Whereas, an ancestral character is one that is originally present in the ancestral population.