Algae are classified based on their photosynthetic pigments Comment.

Explanation

**Step-by-Step Text Solution:**

1. **Introduction to Algae**: Algae are simple, photosynthetic organisms that primarily thrive in aquatic environments. They play a crucial role in the ecosystem as primary producers.

2. **Classification Basis**: Algae are classified based on the types of photosynthetic pigments they contain. These pigments are responsible for capturing light energy during photosynthesis.

3. **Chlorophyll**: The most common pigment found in algae is chlorophyll, which gives them a green color. Algae that contain chlorophyll are classified as green algae. This classification is significant because it indicates their ability to perform photosynthesis in a similar manner to higher plants.

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