Test structure in foraminifera.
D000818:Animals; D005075:Biological Evolution; D002119:Calcium Carbonate / Q000032:analysis; D056890:Eukaryota / Q000032:analysis / Q000145:classification / Q000166:cytology*; D008566:Membranes / Q000032:analysis; D008954:Models, Biological; D010163:Paleontology; D012623:Seawater; D014871:Water Microbiology
D002119:Calcium Carbonate