English Protist shell Cited by user Epipelagic on 09 May 2021 Many protists have protective shells or tests, usually made from calcium carbonate or silica (glass).
English Marine protists Cited by user Epipelagic on 02 Jun 2020 Marine protists are defined by their habitat as protists that live in marine environments, that is, in the saltwater of seas or oceans or the brackish water of coastal…