Thursday, November 4, 2010

Day 22

          Organisms have really started to flurish, I have noticed that the diversity of organisms is increaseing.  The video shown with this post is a video of a ameba.  I looked through a few books and I could not clarify which species it was so it is labeled under Ameba sp.  Amebas are "single celled organisms" (Lee, Hunter, and Bovee 1985) that spend there life stuck to something living off what they happen to run into.  It engulfs its food like a cell receives a virus, it puts it inside of itself and it digests it over time.   They do not have flagellum to help them transport so they stretch there bodies in there designated direction forming a blob that looks like it has fingers gripping onto the surface it lays.  I also found another species of ameba, This one I found in D.J. Pattersons Free-Living Freshwater Protozoa and it is called a "peranema" (Patterson 1992).  Peranema's have a long flagellum coming out of the front of its body, they "squirm actively, especially when feeding" and the "pellicle is finely ridged" (Patterson 1992).   This in my opinion has been the neatest thing I have found yet.  It was a pretty fast mover and seemed to run into every organism around it, seeing if it could possible eat it.


                                                                          Works Cited
Lee JJ, Hunter SH, Bovee EC. 1985.  An Illustrated Guide to the Protozoa. Lawrence (KS): p. 160.

Patterson DJ. 1992. Free-Living Freshwater Protozoa. New York (NY). p. 51

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