single-celled eukaryotes (which are organisms with a nucleus). The term Protista was first used by Ernst Haeckel in 1866. The protists are not a natural...

Admittedly, the Protista is a collection of disparate single-celled forms, but while a more sophisticated taxonomy is in flux (changing), Protista is still a...

Admittedly, the Protista is a collection of disparate single-celled forms, but while a more sophisticated taxonomy is in flux (changing), Protista is still a...

Eukaryota empires. The six-kingdom system with top-level groupings of Protista, Archaebacteria, Eubacteria, Fungi, Plantae, and Animalia. The three-domain...

contained many key components that govern eukaryotic cellular complexity". Protista is a group of different single-celled organisms. More accurate taxonomies...

microscope smallest one-celled organisms. Later Christian Ehrenberg found that protista or bacteria were different kinds of cells. In the late part of the 1800s...

Todo Y. Uematsu K. and Kitazato H. 2008. New organic-walled Foraminifera (Protista) from the ocean's deepest point, the Challenger Deep (western Pacific Ocean)...

in which three kingdoms were added to the animals and plants: Monera, Protista, and Fungi. Whittaker defined the kingdoms by a number of special characteristics...

anything that enhances images. Life timeline Multicellular organisms Microorganism About the kingdom Protista Archived 2012-05-10 at the Wayback Machine...

Prokaryotes or Monera – the most simple living things: bacteria and archaea Protista – eukaryotes that are not plants, fungi, or animals Fungi – mushrooms,...

classification schemes, Amoebozoa is ranked as a phylum in either the kingdom Protista or the kingdom Protozoa. In the classification of the International Society...

system is unique to ciliates, and is one of the reasons why we think the Protista is not a natural clade (monophyletic), but rather a polyphyletic collection...

also derive from symbiosis, but chloroplasts are found only in plants and protista. The chloroplast is surrounded by a double-layered composite membrane with...

biology, including ecology, phylum, phylogeny, stem cell, and the kingdom Protista. Haeckel promoted and popularised Charles Darwin's work in Germany and...

first classified under 'lower fungi'. Later it was put in the kingdoms Protista and Fungi. By the 1990s, most scientists accepted the present classification...

typhimurium is an example of bacteria. Chromalveolates are a group of protista. Amanita muscaria (Fly agaric) is an example of fungi. The fungold frog...

Oomycetes Scientific classification Kingdom: Protista Phylum: Heterokontophyta Class: Oomycetes...

The Great Oxygenation Event (GOE) was the creation of free oxygen in our atmosphere. It was caused by cyanobacteria doing photosynthesis. It took a very...

Chromalveolata is a eukaryote supergroup first proposed by Thomas Cavalier-Smith as a refinement of his kingdom Chromista, which was first proposed in...

An extremophile is an organism (a living thing) which lives best in extreme conditions that are harmful to most life on Earth. They are different from...

Euglena Scientific classification Domain: Eukarya Kingdom: Protista Phylum: Euglenozoa Class: Euglenoidea Family: Euglenaceae Genus: Euglena Ehrenberg...

A hydrothermal vent is an opening in the seabed of the Earth by which geothermal energy escapes. Sea water enters, becomes very hot, and rises. The hottest...

Diatoms are a type of algae (tiny plant-like living things often found in water). Most are single cells, but some form chains or simple colonies. They...

Slime moulds, or slime molds, are forms of life which live on the rainforest floor, and many other parts of the world. They slither over ground and fallen...

Coccoliths are exoskeletal plates produced by microscopic algae, which form chalk sediments. They are made by one of the most important eukaryote phytoplankton...

Toxoplasma gondii T. gondii tachyzoites Scientific classification Kingdom: Protista Phylum: Apicomplexa Class: Conoidasida Subclass: Coccidiasina Order: Eucoccidiorida...

The heterokonts or stramenopiles are a major line of eukaryotes with more than 100,000 known species, most of them diatoms. Heterokonts are mostly algae...

Flagellates are cells with one or more whip-like organelles called flagella. Some cells in animals may be flagellate, for instance the spermatozoa of most...

Leishmania L. donovanii in bone marrow cell Scientific classification Kingdom: Protista Phylum: Euglenozoa Class: Kinetoplastea Order: Trypanosomatida Family:...

The choanoflagellates are a class or phylum of collared microscopic flagellate eukaryotes. Some species are single cells, some are multicellular. They...

Radiolaria are amoeboid protists which produce mineral skeletons. The skeletons, usually of silica (SiO2), have a central capsule. This divides the cell...

The Euglenozoa are a large phylum of flagellate protists. They are part of the wastebasket taxon known as the Protozoa, which had many obviously different...

The kinetoplastids are a group of single-cell flagellate eukaryotes. They include a number of parasites responsible for serious diseases in humans and...

Acritarchs are early microfossils, the remains, probably, of eukaryote cells. It is the resistant single-layered cell walls, or perhaps a cover secreted...

The Trypanosomatida are a group of unicellular kinetoplastids. They have a single flagellum, and often live as parasites. Many trypanosomatids only live...

Wakame Scientific classification Kingdom: Protista Division: Heterokontophyta Class: Phaeophyceae Order: Laminariales Family: Alariaceae Genus: Undaria...

Chytridiomycota is a phylum of the Fungi kingdom. The name comes from chytridium (from the Greek chytridion, meaning "little pot"): the structure containing...

A thermophile is an organism – a type of extremophile – that thrives at relatively high temperatures. That means between about 40 and 120 °C (104 and 248 °F)...

Potato blight is a type of fungal disease. One well known example of potato blight was the disease which caused the Irish potato famine of 1845 to 1852...

parvum Image of C. parvum oocysts. Scientific classification Kingdom: Protista Phylum: Apicomplexa Class: Conoidasida Subclass: Coccidiasina Order: Eucoccidiorida...

The Cryptomonads (or Cryptophyta) are a phylum of algae, most of which have chloroplasts. They are common in freshwater, and also occur in marine and brackish...

Noctiluca scintillans, is the sea sparkle. It is a free-living marine-dwelling species of dinoflagellate. It shows bioluminescence when disturbed: this...

Entamoeba histolytica is an parasitic protozoan, part of the genus Entamoeba. It infects mainly humans and other primates. E. histolytica is estimated...

Haloarchaea are halophiles. They need high salt concentrations to grow. They are a distinct evolutionary branch of the Archaea, and are extremophiles....

Isospora belli Scientific classification Kingdom: Protista (unranked): Alveolata Phylum: Apicomplexa (unranked): Myzozoa Class: Conoidasida Subclass: Coccidiasina...

cayetanensis Cyclospora cayetanensis oocysts Scientific classification Kingdom: Protista Phylum: Apicomplexa Class: Conoidasida Subclass: Coccidiasina Order: Eucoccidiorida...

Grypania is an early, tube-shaped fossil from the Proterozoic eon. It is regarded by some as the first known eukaryote. Grypania's status as a eukaryote...

Haptophytes are a phylum of algae, sometimes called the Prymnesiophyta. All or most of them are single-celled photosynthetic phytoplankton. The cells typically...

Naegleria fowleri is a free-living form of protist typically found in warm fresh water, from 25–35 degrees Celsius. It belongs to a group called the Percolozoa...

Amnesic shellfish poisoning is an illness caused by poisoning with a particular toxin called domoic acid. At times, some diatoms produce domoic acid in...

Microheliella is a genus with only one species, M. maris, it is the sister clade to cryptista, forming pancryptista...

Alexandrium tamarense is a dinoflagellate. It produces the neurotoxin saxitoxin. This toxin causes the human illness paralytic shellfish poisoning (PSP)...

The Ichthyosporea (or DRIP clade, or Mesomycetozoea) is a group of microscopic organisms within the Opisthokont group. They are mostly parasites of fish...