All living and non-living things in a given area that interact with one other, make up an
ecosystem. The non-living part of an ecosystem includes water, rocks, air, light, and soil. This abiotic component is called
biotope. All the different organisms that live together in an ecosystem is called a
community or
biocenosis. Each ecosystem has its own community. A terrarium community, for example, can have small animals. A desert communtiy may have cacti, small snakes, and scorpions. A pond community can have frogs, insects, snakes, and plants, and a forest community may have rabbits, foxes and pine trees. Communities are also divided into
populations. A population is composed of only one type of species. A species is a group of similar organisms; for instance, all humans belong to the same species, but cats and dogs do not.
Here you are the presentation about ecosystems and the first worksheet:
