There are several ecological relationships between organisms including predation, competition, parasitism, and mutualism. Read about these relationships by clicking here. Then watch the videos below.
Predation
This video below on the left shows you a lynx hunting a snowshoe hare. The video below to the right shows you how predator and prey populations are related to each other and go up and down in cycles.
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Parasitism, Commensalism, Mutualism
In a parasitic relationship, one organism benefits, usually by taking nutrients, from another organism. This is different from predation because parasites are usually smaller than and do not quickly kill the organisms they take nutrients from.
In a commensalism relationship, one organism benefits, usually by shelter or protection, from another organism without harm being done to the other organism.
In a mutualistic relationship, both organisms benefit by somehow providing for the needs of each other.
Watch the video below to see examples of all three of these relationships.
In a commensalism relationship, one organism benefits, usually by shelter or protection, from another organism without harm being done to the other organism.
In a mutualistic relationship, both organisms benefit by somehow providing for the needs of each other.
Watch the video below to see examples of all three of these relationships.
Symbiosis Presentation
Games:
Rabbit-wolf population simulation - www.shodor.org/interactivate/activities/RabbitsAndWolves/ - make sure you click "show graph"