1. Bdelloid
A-C. Taxonomy:
Domain: Eukaryota
Kingdom: Animalia
Subkingdom: Bilateria
Phylum: Rotifera
Genus: Bdelloid
D. Defining characteristics of organism
- Size varies between 0.004 and 0.02 inches
- Mobility is done by a foot at anterior end
- Rotifers have bilateral symmetry, segmented bodies, a nervous system with cephalization, but lacks a circulatory system
- Rotifer cells do not undergo mitosis and instead grow larger in size themselves as animal ages
- Reproduction is asexual by females
E. References used:
- http://animals.mom.me/characteristics-rotifera-4468.html
- Photo from poster in lab class
- Photos from: http://www.asknature.org/strategy/3e5009da1724085f6205d206c844e9ff
F. General Comments/Observations
This Bdelloid was wriggling like a worm, constantly moving up the slide. It was very hard to take a picture and when the camera switched too video mode, increased its speed and ran away. It was never seen after.
2. Euglena
A-C. Taxonomy:
Domain: Eukaryota
Kingdom: Protozoa
Subkingdom: Eozoa
Phylum: Euglenozoa
Order: Euglenales
Family: Eugleanaceae
Genus: Euglena
D. Defining characteristics of organism
- single celled organism
- Swims around with tail called flagellum.
- Half-plant/half animal-It can get food by photosynthesis or feeding on pray!
- Three membrane chloroplast(plants and algae have two)
- red eye spot to detect light
- no cell wall but reproduces by binary fission
E. References used:
- Photos on lab poster
- Live euglena in lab
- http://www.mcwdn.org/Animals/Euglena.html
- Encyclopedia of life (http://eol.org/pages/11704/overview)
- AlgaeBase.org (http://www.algaebase.org/search/species/detail/?species_id=30510)
- Photos on internet when I searched for "Euglena"
F. General Comments/Observations
Although Euglena was observed at x400 magnification, it wasn't noticed until the photos were magnified through a program-like a crime scene evidence! Actually it did look like a dead body not showing any movement at all.
3. Colpidium
A-C Taxonomy
Domain: Eukarya
Phylum: Ciliophora
Class: Oligohymenophorea
Order: Hymenostomatida
Family: Tetrahymenidae
Genus: Colpidium
Species: Colpidium colpoda
D. Defining characteristics of organism
- Small and oval shaped body with small mouth; fast swimmer
- 50-70 µm long
- unicellular organism
- cells swim in a spiral and rotates around their long axis
- environment range- dept range (m): 0 - 0
- mostly found in freshwater environment (rivers, streams, lakes, etc)
- heterotrophic bacterivore that feeds on bacteria through an oral groove
- reproduces asexually every 4-6 hours
E. References used:
- Photo from poster in lab class
F. General Comments/Observations
Copidium was actually one doing all the movement in the picture. It moved like a very short and fat worm. It was wondering around the Euglena. Maybe it was trying to take it out.
4. Closterium
A-C. Taxonomy:
Domain: Eukaryota
Kingdom: Protista
Division: Charophyta
Order: Desmidiales
Genus: Closterium
D. Defining characteristics of organism
- Distinct group of green algae
- Mobility is through slowly gyration of either end
- Unicellular with a single central nucleus
E. References used:
- http://www.micrographia.com/specbiol/alg/desmi/desm0100.htm
- Reproduction can be either sexual or asexual depending on circumstances
- Photo from poster in lab class
F. General Comments/Observations
Closterium was just lying there chilling and not really doing anything. Like a regular green algae, just enjoying the microscope light.
I was so impressed with how you got the zoomed pictures of organisms on your post. I also was surprised compared to my groups pond water that your group had the closterium more dispersed. I also like that your font varies from other groups.
ReplyDeletePosted By Robert Barker
Nice post! Your pictures are super detailed along with the rest of your post. I agree that the zoomed in pictures were a rely nice added thing you guys did. Very nice post you have every thing covered.
ReplyDeleteIf I were a closterium, I too would likely just chill and do nothing while hanging out under the microscope light, sounds like they've got it all figured out. The copidium reminds me of myself, a very short and fat worm, trying to take out the Euglena aka me trying to fight Shawna for stealing my microscope.
ReplyDelete