Moneran and Protistan
- Acrasiomycota
- agar
- algae
- ameba
- amoeba
- archaea
- Archaebacteria
- Ascomycota
- bacillus
- bacteria
- bacteriophage
- Basidiomycota
- blue-green algae
- bracket fungi
- brewer's yeast
- brown algae
- C. difficile
- Candida
- carrageen
- Chlorophyta
- Chrysophyta
- Chytridiomycota
- Ciliophora
- Clostridium
- coralline algae
- cyanobacteria
- cytomegalovirus
- death angel
- denitrifying bacteria
- desmid
- Deuteromycota
- diatom
- Dinoflagellata
- E. coli
- Escherichia coli
- Euglenophyta
- foraminiferan
- Fungi
- green algae
- gulfweed
- Iceland moss
- Irish moss
- Jaffna moss
- kelp
- lichen
- Mastigophora
- Metazoa
- mildew
- mold
- Monera
- MRSA
- mushroom
- Myxomycota
- nekton
- nitrifying bacteria
- nitrogen-fixing bacteria
- Oomycota
- Opalinida
- paramecium
- Phaeophyta
- phage
- plankton
- plasmodium
- pond scum
- prokaryote
- Protista
- Protozoa
- protozoan
- puffball
- Pyrrhophyta
- red algae
- red tide
- retrovirus
- Rhodophyta
- Saccharomyces
- Sarcodina
- Sargassum
- sea lettuce
- seaweed
- slime mold
- Sporozoa
- staphylococcus
- streptococcus
- Streptomyces
- thallophyte
- toadstool
- truffle
- trypanosome
- virus
- water mold
- yeast
- zooplankton
- Zygomycota
Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
- Places +-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-
