What part of a pond ecosystem is

not a part of the pond community.Explain

First read the definition of community at the following site:
http://en.wikipedia.org/wiki/Community

please read this definition of abiotic

http://en.wikipedia.org/wiki/Abiotic

Then read this definition of ecosystem:
http://en.wikipedia.org/wiki/Ecosystem

So to answer your question, think about an abiotic component of the pond ecosystem.

In a pond ecosystem, the abiotic components are the non-living factors that influence the community of living organisms. These components include things like sunlight, water, temperature, pH levels, nutrients, and the physical structure of the pond.

Unlike the biotic components (living organisms) such as plants, animals, and microorganisms, abiotic components do not directly participate in the interaction or relationships within the pond community. They provide the necessary physical and chemical conditions for the organisms to survive and thrive, but they themselves do not belong to the community.

For example, sunlight is crucial for photosynthesis, which drives the growth of plants in the pond. However, sunlight is not a part of the pond community itself. It simply provides the energy source for plants to carry out photosynthesis, which in turn supports the rest of the community.

Similarly, temperature and water quality are important abiotic factors that affect the organisms in the pond ecosystem. Changes in these factors can have a significant impact on the community, but they are not considered a part of the community themselves.

Therefore, when considering the components of a pond ecosystem, the abiotic factors are the parts that are not considered a part of the pond community.