Predation, A spider catches and eats a fly., Competition, Two squirrels want the same nesting hole., Mutualism, A cleaner shrimp eats parasites from a fish. The shrimp gets food, and the fish gets cleaned., Parasitism, A tapeworm takes nutrients from a cat. The cat is harmed., Commensalism, A bird uses an old woodpecker hole for shelter. The woodpecker is not affected.

Ecosystem Relationships

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