Write the names of four levels of biological organisation.

Explanation

To answer the question about the four levels of biological organization, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Basic Unit of Life**: The first level of biological organization is the **Organism**. An organism is an individual living entity that can function on its own, such as a human, animal, or plant.

2. **Group of Individuals**: The second level is the **Population**. A population consists of a group of individuals of the same species that live in a specific area and interact with one another.

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