1 / 8

Classification & Taxonomy: Part 2

Pre-AP Biology. Classification & Taxonomy: Part 2. Modern Taxonomy. Systematics - Classifying organisms and their evolutionary relationships  connects phylogeny and taxonomy. Systematics based on: Fossils (but record can be incomplete) Morphology = study of form and structure Genes

stew
Download Presentation

Classification & Taxonomy: Part 2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Pre-AP Biology Classification & Taxonomy: Part 2

  2. Modern Taxonomy Systematics-Classifying organisms and their evolutionary relationships  connects phylogeny and taxonomy

  3. Systematics based on: • Fossils (but record can be incomplete) • Morphology = study of form and structure • Genes • Molecular evidence

  4. Looks at homologous structuresfrom divergent evolution or common ancestry • Must distinguish between homologous and analogous structures before constructing phylogenies.

  5. Phylogenetic Trees = a family tree that shows the evolutionary relationships among groups of organisms

  6. Provides a hypothetical visual representation of the findings from systematics • All trees are subject to change as new information is gathered

  7. Cladistics = the study of how species may be grouped together based on shared characteristics • Patterns of shared characteristics can be depicted in a diagram called a cladogram.

More Related