User:Esther Lee/Notebook/Lab 2: Identifying Algae and Protists

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'''Lab 2: Identifying Algae and Protists'''

Objective: To learn to use a dichotomous key and identify protists in the hay infusion culture.

Procedure I: How to Use a Dichotomous Key

Bio210 S2 Lab 2- Procedure I.jpg

Procedure II: Hay Infusion Culture Observations

The hay infusion culture smelled like mold. Most of the molds or green shoots were found at the bottom of the culture and the top had a murky film. The organisms may differ near vs away from the plant matter because it would be their source of food. If an organism needs the plant matters as their food source to survive, that particular organism will be found near the plant matter. If the plant matter is not the primary source of an organism, it may be found away from the plant matter. The copidium meets all the needs of life: energy, cells, information,replication and evolution. The colpidium acquires energy, is a single cell and contains a nucleus, replicates and would have evolved from its past ancestors.

From the top of the hay infusion culture, colpidium and didinium cyst were found. At the bottom of the hay infusion culture, Peranema was found.

Bio210 S2 Lab 2- Procedure II.jpg


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