The variety of life in the world or in a particular habitat or ecosystem. A Abiotic factors B Biotic factors c Biodiversity Ecosystems

## Step 1
The question is asking for the term that describes the variety of life in the world or in a particular habitat or ecosystem.

## Step 2
Let's analyze each option:
- Abiotic factors: These are non-living components in the environment that affect living organisms and the functioning of ecosystems. They include things like sunlight, temperature, and soil.
- Biotic factors: These are living components in the environment that affect other organisms, such as plants, animals, and bacteria.
- Biodiversity: This term refers to the variety of life in the world or in a particular habitat or ecosystem. It includes the number of different species and the range of genetic differences within and among these species.
- Ecosystems: These are communities of living organisms in conjunction with the nonliving components of their environment, interacting as a system.

## Step 3
Based on the definitions, the term that best fits the description given in the question is 'Biodiversity'.