Kingdom Protista

Description:Protists are a group of eukaryotic microorganisms that live in aquatic enviornments. They are considered more complex than archaebacteria and eubacteria, but are still very simplistic compared to fungi, animals, and plants. Protists function as primary producers in many aquatic ecosystems. Not considered a true monophyletic kingdom.
Divergent Event:The first protists are suspected to have come about over 2 billion years ago, through a process of endosymbiosis,which eventually led to a new type of organism being created entirely.
Body Plan: They can be both unicellular and multicellular.
Metabolism:Protists are both autotrophic and heterotrophic, due to the wide range of structural forms the organisms possess. An example of autotrophic protists would be algae, which are photosynthetic plant-like organisms, and an example of heterotrophic protists are amoebas, which engulf organic compounds and digest them.
Digestion:Most protists possess intracellular digestion, but some animal-like ones possess extracellular digestive systems. These animal-like protists have complete digestive systems, as they dissolve complex organic compounds.
Nervous:They have none
Circulatory: They have none.
Respiratory: They rely on diffusion with the enviornment
Reproduction:Protists can reproduce sexually or asexually
Examples:Amoeoba
Paramecium
Excavata- They are unicellular eukaryotes. Most lack mitochondria. Can have 2 or more flagella. Live life as single cells.
Chromalveolata-Consists of 3 groups he Heterokontae, Alveolatae, and Eukaryomonadae whose taxa may be photosynthetic, parasitic, saprophytic, or heterotrophic. A type of chromalveolata is a Ciliate which is not photosyntheic and contains aveoli and uniformed flagella
Rhizaira At type of amoeba that performs phagocytosis by surrounding and engulfing food using pseudopods(False Feet) Nearly all have mitochondria.Ex). Cercozoa
Archaeplastida-Comprised of red and green algae and the land plants, together with a small group called the glaucophytes. They got their chloroplasts endosymbiotically.Although many studies have suggested that the Archaeplastida form a monophyletic group, research suggests that they are in fact paraphyletic.
Unikonta-The group includes eukaryotic cells that have a single emergent flagellum, or are amoebae with no flagella. The unikonts include opisthokonts (animals, fungi, and related forms) and Amoebozoa. By contrast other well-known eukaryotic groups, which more often have two emergent flagella (although there are many exceptions) are often referred to as bikonts.