10-21 - Anthropology 1001 October 21, 2009 Taxonomy The...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Anthropology 1001 October 21, 2009 Taxonomy The Field of study that deals with classifying organisms o Now goes more off classifying organisms based on genetic information o Use Fossil Record o Genetic information isn’t available in Fossils, base of physical aspects Homologous Traits -A trait that is shared by two species based on dissent from a common ancestor o Example : Fore Limb structure in vertebrates Analogous Traits - (Analogy, Homoplasies) Similarities in a trait between two species as a result of a common functional adaptation o Convergent Evolution o Example: Wings like Bird vs. Bat o Example: Body form of shark vs. dauphin Homologies would be more useful Different Methods Evolutionary Systematics o Phylogenetic Tree Attempts to use a time component How Long species have been related Cladistics o Looks at homologies and defines them as: Ancestral (Primitive)- A trait that has not changed since the ancestral condition Modified (Derived)- A trait that has changed and is specific to a
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

10-21 - Anthropology 1001 October 21, 2009 Taxonomy The...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online