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Mutualism benefits both living things.This picture shows the bee's spreading pollen on the flowers which helps the flowers reproduce.
Commensalism benefits one and the other is unaffected.This picture shows two birds on a cow taking insects off of the cow which benefits the birds and makes the cow unaffected.
Parasitism Benefits one and harms the other.This picture shows a tick taking blood from a dog which harms the dog and benefits the tick.
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