Photosynthetic pigment in cyanobacteria is____________.

Explanation

To answer the question regarding the photosynthetic pigment in cyanobacteria, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Cyanobacteria**: Recognize that cyanobacteria are often referred to as blue-green algae. This classification is important as it helps in understanding their characteristics.

2. **Understand Photosynthesis**: Know that cyanobacteria are capable of photosynthesis, which is the process of converting light energy into chemical energy to produce food.

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