'Sponges make up a phylum named for these tiny openings through which water flows'
pores
SCIENCE & NATURE: Sponges make up a phylum named for these tiny openings through which water flows
Sponges make up a phylum named for these tiny openings through which water flows
Sponges make up a phylum named for these tiny openings through which water flows
SCIENCE & NATURE
pores
SCIENCE & NATURE