- Crustose
- Dinocyst
- Fusulinid
- Gelidiella calcicola
- Haematococcaceae
- Halimeda tuna
- Heterocyst
- Hormogonium
- Leathesia difformis
- Lessonia
- Nori
- Pelagophyceae
- Pelagophycus
- Phycobiliprotein
- Pneumatocyst
- Prorocentrales
- Rhizochromulina
- Sargassaceae
- Scytosiphon lomentaria
- Snow algae
- Syndiniales
- Turbinaria ornata
- Algal mat
- Lamina (algae)
- Biofuel applications of botryococcene
- Tetraselmis suecica
- Carpophyllum maschalocarpum
- Colpodea
- Nassophorea
- Peniculid
- Phyllopharyngea
- Aconoidasida
- Besnoitia bennetti
- Besnoitia besnoiti
- Besnoitia tarandi
- Eimeria
- Eimeria acervulina
- Eimeria brunetti
- Eimeria maxima
- Eimeria meleagridis
- Eimeria necatrix
- Eimeria stiedae
- Eimeria tenella
- Plasmodium vinckei
- Plasmodium brumpti
- Plasmodium vaughani
- Astome
- Avoidance reaction
- Choreotrich
- Coleps
- Epigenetic controls in ciliates
- Heterotrich
- Holotrich
- Hymenostome
- Ichthyophthirius multifiliis
- Odontostomatida
- Oligotrich
- Parameciidae
- Peritrich
- Plagiopylida
- Spirotrich
- Tintinnid
- Vorticella
- Peronosporales
- Phytophthora sojae
- Actinophryid
- Pedinellales
- Hyaloperonospora
- Hyaloperonospora brassicae
- Leptomitales
- Carrageenan
- Coelastraceae
- Oedogonium
- Parietochloris incisa
- Scenedesmus acuminatus
- Ulvales
- Wheels of Poseidon