User:Jennifer M Thelus/Notebook/Biology 210 at AU

Observations of the Volvocine Line and a Niche at American University

15 January 2015

Purpose

Natural selection drives the evolution of different species. The three different conditions that must be met in order for natural selection to occur are variability, differential capacity or survival and reproduction, and heritability. Once it has been established that natural selection is occurring, the changing traits can be observed to determine whether or not evolution is taking place by observing different frequencies. Therefore evolution is taking place if a specific frequency is increasing or another is decreasing.

Materials and Methods

-Part 1:The Volvocine Line ·First observe chlamydomonas. Then measure the number of cells, as well as colony size in μm. Be sure to answer whether or not the cells are specialized, the mechanisms of motility for each genera, and if they are isogamous or oogamous. Then draw a picture of the live specimen. Repeat this process for the Gonium and Volvox. Record all data in a table.