Name the three types of organisms found in a marine ecosystem.

Explanation

To answer the question regarding the three types of organisms found in a marine ecosystem, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Types of Organisms**: In a marine ecosystem, organisms can be classified based on their habitat and mode of life. The three main types are:
- **Plankton**
- **Necton**
- **Benthos**
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