What are we going to learn?- What an ecosystems is
- Elements of ecosystems
- Interactions between living things
- Understand a food chain
- Types of natural and artificial ecosystems
- Human influence in ecosystems
What is an Ecosystem?
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). Ecosystems are the foundations of the Biosphere and they determine the health of the entire earth system.
In an ecosystem, each organism has its own 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.
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