Difference between revisions of "Arctic Life/Protista"

From Arctic Bioscan Wiki
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=Adaptations=
 
=Adaptations=
  
*[[Polar_Life/Polar_Protista/Adaptations_Algal_Life_Preservers | Algal Life Preservers]]
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*[[Arctic_Life/Protista/Adaptations_Algal_Life_Preservers | Algal Life Preservers]]
*[[Polar_Life/Polar_Protista/Adaptations_Algal_Popsicles | Algal Popsicles]]
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*[[Arctic_Life/Protista/Adaptations_Algal_Popsicles | Algal Popsicles]]
*[[Polar_Life/Polar_Protista/Adaptations_Algal_Sunscreens | Algal Sunscreens]]
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*[[Arctic_Life/Protista/Adaptations_Algal_Sunscreens | Algal Sunscreens]]
  
 
=Cool Facts=
 
=Cool Facts=
  
*[[Polar_Life/Polar_Protista/Cool_Facts_An_Icy_Garden | An Icy Garden]]
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*[[Arctic_Life/Protista/Cool_Facts_An_Icy_Garden | An Icy Garden]]
*[[Polar_Life/Polar_Protista/Cool_Facts_Multi_Coloured_Snow | Multi-Coloured Snow]]
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*[[Arctic_Life/Protista/Cool_Facts_Multi_Coloured_Snow | Multi-Coloured Snow]]
*[[Polar_Life/Polar_Protista/Cool_Facts_Sea_Ghosts | Sea Ghosts]]
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*[[Arctic_Life/Protista/Cool_Facts_Sea_Ghosts | Sea Ghosts]]
  
 
=Biology=
 
=Biology=
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The kingdom Protista, as we have defined it, includes all those organisms that are not bacteria, animals, true fungi, or green plants. Many protists are motile and feed on other organisms, which makes them appear animal-like. Other protists, such as algae, are plant-like and obtain their energy directly from the sun. Most protists are unicellular, meaning that they perform all the basic tasks of life, including feeding, locomotion, and reproduction, within a single cell – their body. However, some protists form multicellular colonies of considerable complexity. In fact, the largest photosynthetic organisms in the Arctic are not land plants, but are multicellular protists – algae.
 
The kingdom Protista, as we have defined it, includes all those organisms that are not bacteria, animals, true fungi, or green plants. Many protists are motile and feed on other organisms, which makes them appear animal-like. Other protists, such as algae, are plant-like and obtain their energy directly from the sun. Most protists are unicellular, meaning that they perform all the basic tasks of life, including feeding, locomotion, and reproduction, within a single cell – their body. However, some protists form multicellular colonies of considerable complexity. In fact, the largest photosynthetic organisms in the Arctic are not land plants, but are multicellular protists – algae.
  
*[[Polar_Life/Polar_Protista/Biology_Algae | Algae]]
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*[[Arctic_Life/Protista/Biology_Algae | Algae]]
*[[Polar_Life/Polar_Protista/Biology_Oomycetes | Oomycetes]]
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*[[Arctic_Life/Protista/Biology_Oomycetes | Oomycetes]]
*[[Polar_Life/Polar_Protista/Biology_Protozoa | Protozoa]]
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*[[Arctic_Life/Protista/Biology_Protozoa | Protozoa]]
*[[Polar_Life/Polar_Protista/Biology_Slime_Moulds | Slime Moulds]]
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*[[Arctic_Life/Protista/Biology_Slime_Moulds | Slime Moulds]]
  
 
=Freshwater Protists=
 
=Freshwater Protists=
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Three groups of protists dominate freshwater environments: algae, oomycetes, and protozoans.
 
Three groups of protists dominate freshwater environments: algae, oomycetes, and protozoans.
  
*[[Polar_Life/Polar_Protista/Freshwater_Protists_Algae | Algae]]
+
*[[Arctic_Life/Protista/Freshwater_Protists_Algae | Algae]]
*[[Polar_Life/Polar_Protista/Freshwater_Protists_Water_Moulds | Water Moulds - Phylum Oomycota]]
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*[[Arctic_Life/Protista/Freshwater_Protists_Water_Moulds | Water Moulds - Phylum Oomycota]]
*[[Polar_Life/Polar_Protista/Freshwater_Protists_Protozoa | Protozoa]]
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*[[Arctic_Life/Protista/Freshwater_Protists_Protozoa | Protozoa]]
  
 
=Marine Protists=
 
=Marine Protists=
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Three groups of protists dominate arctic marine environments: algae, oomycetes, and protozoans.
 
Three groups of protists dominate arctic marine environments: algae, oomycetes, and protozoans.
  
*[[Polar_Life/Polar_Protista/Marine_Protists_Algae | Algae]]
+
*[[Arctic_Life/Protista/Marine_Protists_Algae | Algae]]
*[[Polar_Life/Polar_Protista/Marine_Protists_Water_Moulds | Water Moulds - Phylum Oomycota]]
+
*[[Arctic_Life/Protista/Marine_Protists_Water_Moulds | Water Moulds - Phylum Oomycota]]
*[[Polar_Life/Polar_Protista/Marine_Protists_Protozoa | Protozoa]]
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*[[Arctic_Life/Protista/Marine_Protists_Protozoa | Protozoa]]
  
 
=Terrestrial Protists=
 
=Terrestrial Protists=
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Three groups of protists dominate arctic terrestrial environments: algae, oomycetes, and slime moulds.
 
Three groups of protists dominate arctic terrestrial environments: algae, oomycetes, and slime moulds.
  
*[[Polar_Life/Polar_Protista/Terrestrial_Protists_Algae | Algae]]
+
*[[Arctic_Life/Protista/Terrestrial_Protists_Algae | Algae]]
*[[Polar_Life/Polar_Protista/Terrestrial_Protists_Water_Moulds | Water Moulds - Phylum Oomycota]]
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*[[Arctic_Life/Protista/Terrestrial_Protists_Water_Moulds | Water Moulds - Phylum Oomycota]]
*[[Polar_Life/Polar_Protista/Terrestrial_Protists_Protozoa | Protozoa]]
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*[[Arctic_Life/Protista/Terrestrial_Protists_Protozoa | Protozoa]]

Revision as of 19:31, 28 October 2019

A variety of unique protists. Photo courtesy of Wikimedia Commons.

The kingdom Protista has long been the repository for all life forms that possess the cellular structures typical of eukaryotes (nucleus, mitochondria, chloroplasts), but look different from animals, fungi, or plants. It is now recognized that many of the traditional members of this kingdom need to be assigned elsewhere. In fact, there is good agreement that its members need to be subdivided into two groups – the kingdom Chromista and the kingdom Protozoa. As well, a number of other "traditional" protists have been assigned to the kingdom Plantae (e.g., green algae, red algae) or to the kingdom Fungi (e.g., Pneumocystis) based on genetic studies. However, because the process of revising the classification of protists is a work in progress, we have continued to place all of these groups in a single kingdom, retaining the name Protista. In an effort to simplify the discussion of this immensely diverse group of organisms, we have separated information on four broadly recognized groups of protists: algae, oomycetes, protozoans, and slime moulds.

Adaptations

Cool Facts

Biology

Protista biology.png

The kingdom Protista, as we have defined it, includes all those organisms that are not bacteria, animals, true fungi, or green plants. Many protists are motile and feed on other organisms, which makes them appear animal-like. Other protists, such as algae, are plant-like and obtain their energy directly from the sun. Most protists are unicellular, meaning that they perform all the basic tasks of life, including feeding, locomotion, and reproduction, within a single cell – their body. However, some protists form multicellular colonies of considerable complexity. In fact, the largest photosynthetic organisms in the Arctic are not land plants, but are multicellular protists – algae.

Freshwater Protists

Three groups of protists dominate freshwater environments: algae, oomycetes, and protozoans.

Marine Protists

Three groups of protists dominate arctic marine environments: algae, oomycetes, and protozoans.

Terrestrial Protists

Three groups of protists dominate arctic terrestrial environments: algae, oomycetes, and slime moulds.