Chondrus, Porphyra and Celidium are examples of which group of algae?

Explanation

To answer the question about which group of algae Chondrus, Porphyra, and Gelidium belong to, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Organisms**: The question provides three specific organisms: Chondrus, Porphyra, and Gelidium.

2. **Understand Algae Classification**: Algae are classified into three main groups based on their pigments and characteristics:
- Green Algae (Chlorophyta)
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