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Science cross word

Across
One organism benefits the other is not affected.
Third level of an ecosystem.
Both organisms benefit.
They produce energy for themselves.
Eat plants and animals.
A living part of a ecosystem.
Levels on energy pyramid.
Down
Relationships were two organisms live in close association.
One organism benefits and the other is harmed.
Only eats plant's
Second level in a ecosystem.
A decoposer.
A type of decomposer.
Starts every proper food web.
Only eats meat.