Materials

■ culture of Chlamydomonas

■ colonial green algae culture (Chlamydomonas, Eudorina, Gonium, Pandorina, Volvox, and Hydrodictyon)

■ culture of Spirogyra

■ 3 depression slides

■ 3 medicine droppers

■ compound light microscope

Background

1. Distinguish between the terms protozoa and algae.

2. Green algae are either unicellular, colonial, filamentous, or multicellular.

3. Explain why green plants are thought to have evolved from green algae.

4. List characteristics of green algae. Include ways that algae differ from plants.

5. How do green algae differ from other algae?

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