Question

Pea crabs live their entire lives inside of an oyster. They live inside the oyster's gills and feed on the

food that filters in. Often as the oyster grows, its muscles and gills will become weak. This symbiotic
relationship is an example of
O Parasitism
O Predation
O Mutualism
O Commensalism

Answer 1

Commensalism, the crab benefits from the oyster but the oyster is neither benefited nor harmed.