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1. The three criteria used to classify algae are the types of chlorophyll and secondary

pigments, the method of chlorophyll storage, and the composition of the cell wall.

2. All algae are considered plantlike because they contain photosynthetic pigments.

3. Algal blooms occur when euglenoids reproduce in great numbers due to plentiful

food and favorable environmental conditions.

4. Bioluminescent dinoflagellates emit light and are usually found in salt water.

5. Algae that have characteristics of both plants and animals are chrysophytes.

6. The secondary pigment fucoxanthin accounts for the color of red algae.

7. Algae are high in protein and contain minerals, trace elements, and vitamins

8. Many algae have a life cycle called alternation of generations