Ecology the branch of biology that deals with the relations of organisms to one another and to their physical surroundings. |
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Ecosystem a
biological community of interacting organisms and their physical environment. |
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Animals
need three things to survive. If a lot of animals live in one place it is going to be hard for them to survive because they need food, shelter, and water. For example, if three animals were living in one place and they had every thing and another 5 animals came that are bigger and stronger, then them they would take their food, shelter, and water. 
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Symbiotic Relationships are found in every ecosystem. Mutualism is when two species benefit. Communalism is a relationship in which one species benefits and the other is not affected. Parasitism a symbiotic relationship in which one species benefits and the other is harmed. |
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| Adaptations
are what animals and plants have, or do, to survive. Animals like deer
eat grass and plants and they get eaten by animals like lions. one adaptation
deer have is when they are babies. As fawns, their coat is brown with white
spots and they are able to hide in the leaves. Also their predators can't
smell them. Animal |
The lemming lives in the Arctic ecosystem mostly in Greenland and Scandinavia. Vernale pool |