Revision Notes For Class 12 Biology Chapter 14 Ecosystem

The ecosystem is a term that is used to describe the collective interaction of organisms with their environment. In other words, an ecosystem describes the entities and the elements, such as the various animals, plants, microbes, non-living things etc and their interaction with each other.

Scientists have classified ecosystems into 3 variants, or biomes. They are terrestrial ecosystems, oceanic ecosystem and freshwater ecosystem. As the name suggests, each ecosystem predominantly exists on the land, ocean and freshwater respectively. To learn more about the ecosystem and its types, explore class 12 biology revision notes, chapter 14 – Ecosystem, right here on BYJU’s.

CBSE Class 12 Biology Notes Chapter 14 Ecosystem

Further Reading

Endangered Species

Frequently asked Questions on CBSE Class 12 Biology Notes Chapter 14: Ecosystem


What are ‘Endangered species’?

A species considered to be facing a very high risk of extinction in the wild.


What is the importance of proper Ecosystem?

1. Provides habitat to wild plants and animals.2. Promotes various food chains and food webs.3. Controls essential ecological processes and promotes lives.4. Involved in the recycling of nutrients between biotic and abiotic components.


What are the benefits of a clean ocean?

The ocean produces over half of the world’s oxygen and absorbs 50 times more carbon dioxide than our atmosphere.


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