WHAT IS AN ECOSYSTEM?

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An ecosystem includes all of the living things (plants, animals and organisms) in a given area, interacting with each other, and also with their non-living environments (weather, earth, sun, soil, climate, atmosphere). 

In an ecosystem, each organism has its' own niche or role to play.
Consider a small puddle at the back of your home. In it, you may find all sorts of living things, from microorganisms to insects and plants. These may depend on non-living things like water, sunlight, turbulence in the puddle, temperature, atmospheric pressure and even nutrients in the water for life.

What are the different types of ecosystems?

There are very many types of ecosystems out there, but the three major classes of ecosystems, sometimes referred to as ‘biomes’, which are relatively contained, are the following:

• Freshwater Ecosystems
• Terrestrial Ecosystems
• Ocean Ecosystems   

Sources: http://eschooltoday.com/

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