…axinellae grows on the sponge Axinella. The organisms that live in the cavities of sponges include crustaceans, nematode and polychaete worms, ophiuroid echinoderms (brittle stars), and bivalve mollusks; some inhabit a sponge for occasional shelter or nourishment, others establish more intimate associations as parasites or predators. Young shrimps of the…
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