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Do protists cells have a nucleus?
Yes they do. Some protists have other organelles that other protists may be lacking but they all still have nuclei.
Why do plant like protists not have leaves roots stems?
Plantlike protists can move around and still photosynthesize.
What protists would be considered algae?
Algae are protists because they have some of the same organelles. They also are actually called plant like protists. They are still in the protists kingdom though. Protists are microscopic. But, algae is not microscopic. It is confusing but algae is in the Protists Kingdom. Algae also has call walls.
Linnaeus founded the science of?
He was known a the Father of Taxonomy and created binomial nomenclature, which is a 2 part scientific name written in italics or underlined, based on structural similarities of organisms. Genus is always capitalized and species is always lower case. Ex: Homo sapiens
What is the main problem with classifying protists?
Historical classificationsThe first division of the protists from other organisms came in the 1830s, when the German biologist Georg August Goldfuss introduced the word protozoa to refer to organisms such as ciliates and corals.[4] This group was expanded in 1845 to include all "unicellular animals", such as Foraminifera and amoebae. The formal taxonomic category Protoctista was first proposed in the early 1860s by John Hogg, who argued that the protists should include what he saw as primitive unicellular forms of both plants and animals. He defined the Protoctista as a "fourth kingdom of nature", in addition to the then-traditional kingdoms of plants, animals and minerals.[4] The kingdom of minerals was later removed from taxonomy by Ernst Haeckel, leaving plants, animals, and the protists as a "kingdom of primitive forms".[5]Herbert Copeland resurrected Hogg's label almost a century later, arguing that "Protoctista" literally meant "first established beings", Copeland complained that Haeckel's term protista included anucleated microbes such as bacteria. Copeland's use of the term protoctista did not. In contrast, Copeland's term included nucleated eukaryotes such as diatoms, green algae and fungi.[6] This classification was the basis for Whittaker's later definition of Fungi, Animalia, Plantae and Protista as the four kingdoms of life.[7] The kingdom Protista was later modified to separate prokaryotes into the separate kingdom of Monera, leaving the protists as a group of eukaryotic microorganisms.[8] These five kingdoms remained the accepted classification until the development of molecular phylogenetics in the late 20th century, when it became apparent that neither protists nor monera were single groups of related organisms (they were not monophyletic groups).[9]Modern classificationsCurrently, the term protist is used to refer to unicellular eukaryotes that either exist as independent cells, or if they occur in colonies, do not show differentiation into tissues.[10] The term protozoa is used to refer to heterotrophic species of protists that do not form filaments. These terms are not used in current taxonomy, and are retained only as convenient ways to refer to these organisms. The taxonomy of protists is still changing. Newer classifications attempt to present monophyletic groups based on ultrastructure, biochemistry, and genetics. Because the protists as a whole are paraphyletic, such systems often split up or abandon the kingdom, instead treating the protist groups as separate lines of eukaryotes. The recent scheme by Adl et al. (2005)[10] is an example that does not bother with formal ranks (phylum, class, etc.) and instead lists organisms in hierarchical lists. This is intended to make the classification more stable in the long term and easier to update. Some of the main groups of protists, which may be treated as phyla, are listed in the taxobox at right.[11] Many are thought to be monophyletic, though there is still uncertainty. For instance, the excavates are probably not monophyletic and the chromalveolates are probably only monophyletic if the haptophytes and cryptomonads are excluded.
Do protists cells have a nucleus?
Yes they do. Some protists have other organelles that other protists may be lacking but they all still have nuclei.
Why do plant like protists not have leaves roots stems?
Plantlike protists can move around and still photosynthesize.
Is kelp a protist?
kelp are indeed protists, for they are still to simple to be plants.
What protists would be considered algae?
Algae are protists because they have some of the same organelles. They also are actually called plant like protists. They are still in the protists kingdom though. Protists are microscopic. But, algae is not microscopic. It is confusing but algae is in the Protists Kingdom. Algae also has call walls.
Linnaeus founded the science of?
He was known a the Father of Taxonomy and created binomial nomenclature, which is a 2 part scientific name written in italics or underlined, based on structural similarities of organisms. Genus is always capitalized and species is always lower case. Ex: Homo sapiens
What are the ratings and certificates for Still Standing - 2002 Still Changing 1-19?
Still Standing - 2002 Still Changing 1-19 is rated/received certificates of: Argentina:Atp
What is the taxonomy of tilapia?
Tilapia is a kind of fish.
How can protists still be considered eukaryote if they have only one cell?
Most importantly,they have an organized nucleus which is lacked in prokariyotes.
Why is history open to ongoing and changing interpretations?
History is still going and changing for many reasons. The main reason it is still going is because there is still life on earth that change.
What are the release dates for Still Standing - 2002 Still Changing 1-19?
Still Standing - 2002 Still Changing 1-19 was released on: USA: 14 April 2003 France: 20 October 2005
What is the main problem with classifying protists?
Historical classificationsThe first division of the protists from other organisms came in the 1830s, when the German biologist Georg August Goldfuss introduced the word protozoa to refer to organisms such as ciliates and corals.[4] This group was expanded in 1845 to include all "unicellular animals", such as Foraminifera and amoebae. The formal taxonomic category Protoctista was first proposed in the early 1860s by John Hogg, who argued that the protists should include what he saw as primitive unicellular forms of both plants and animals. He defined the Protoctista as a "fourth kingdom of nature", in addition to the then-traditional kingdoms of plants, animals and minerals.[4] The kingdom of minerals was later removed from taxonomy by Ernst Haeckel, leaving plants, animals, and the protists as a "kingdom of primitive forms".[5]Herbert Copeland resurrected Hogg's label almost a century later, arguing that "Protoctista" literally meant "first established beings", Copeland complained that Haeckel's term protista included anucleated microbes such as bacteria. Copeland's use of the term protoctista did not. In contrast, Copeland's term included nucleated eukaryotes such as diatoms, green algae and fungi.[6] This classification was the basis for Whittaker's later definition of Fungi, Animalia, Plantae and Protista as the four kingdoms of life.[7] The kingdom Protista was later modified to separate prokaryotes into the separate kingdom of Monera, leaving the protists as a group of eukaryotic microorganisms.[8] These five kingdoms remained the accepted classification until the development of molecular phylogenetics in the late 20th century, when it became apparent that neither protists nor monera were single groups of related organisms (they were not monophyletic groups).[9]Modern classificationsCurrently, the term protist is used to refer to unicellular eukaryotes that either exist as independent cells, or if they occur in colonies, do not show differentiation into tissues.[10] The term protozoa is used to refer to heterotrophic species of protists that do not form filaments. These terms are not used in current taxonomy, and are retained only as convenient ways to refer to these organisms. The taxonomy of protists is still changing. Newer classifications attempt to present monophyletic groups based on ultrastructure, biochemistry, and genetics. Because the protists as a whole are paraphyletic, such systems often split up or abandon the kingdom, instead treating the protist groups as separate lines of eukaryotes. The recent scheme by Adl et al. (2005)[10] is an example that does not bother with formal ranks (phylum, class, etc.) and instead lists organisms in hierarchical lists. This is intended to make the classification more stable in the long term and easier to update. Some of the main groups of protists, which may be treated as phyla, are listed in the taxobox at right.[11] Many are thought to be monophyletic, though there is still uncertainty. For instance, the excavates are probably not monophyletic and the chromalveolates are probably only monophyletic if the haptophytes and cryptomonads are excluded.
In science is todays classification system still changing?
No it is not
