What are the differences and similarities between the sponges of the simplest animals?

sponges, like all protozoa, live in the aquatic environment. unlike protozoa, sponges of multicellular animals. with a pronounced specialization of cells.
sponges are food for other aquatic animals and also serve as a habitat for small organisms. people use sponges in perfumery, medicine, as well as various industries and technical purposes as fertilizer.



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