Chapter 2 Handout- Taxonomy and systematics - BIOL 3705 Chapter 2 Taxonomy and Systematics Name Zoelle Reinke Instructions Complete the following

Chapter 2 Handout- Taxonomy and systematics - BIOL 3705...

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BIOL 3705 Chapter 2: Taxonomy and Systematics Name: Zoelle Reinke Instructions- Complete the following handout as thoroughly as possible using your textbook and Moodle Powerpoint files to assist you. Type your answers into this document, print, and turn in by the due date. Handouts are to be completed by each student independently. Section 1: Vocabulary Systematics- Study of evolutionary relationships among organisms. Specifically between an organism and then higher taxa. Taxonomy- Taxonomy is the practice of describing biodiversity and arranging it into a classification system. This also includes making identification keys for these organisms. In taxonomy it includes all of the rules of nomenclature for naming. Apomorphies- One of the two groups Henning divided characteristics into. This group was specifically recently evolved, derived, or advanced characteristics. Plesiomorphies- The second group that Henning divided characteristics into. This group was ancestral primitive characteristics. Synapomorphies- Shared derived characteristics, this is especially useful for constructing phylogenetic classifications. Meristics- Characteristics that respond to specific body segments. An example is the number of fin rays or vertebrae in a fish. Morphometrics- These are characteristics that are measurable. Some examples would be fin lengths, head length, eye diameter, and ratios between measurements.

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