Many corals and sponges form skeletons that support and shape their bodies. Whereas biomineralization – the formation of these skeletons – has been intensively studied in corals, the main ecosystem ...
I THINK there can be little doubt that the Amœbæ referred to by Mr. Orton in NATURE of November 27 are not independent organisms, but constituents of the sponge from which he obtained them. I have ...
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