Q:

What are the six kingdoms of living organisms?

A:

Quick Answer

The six kingdoms of living organisms are Archaebacteria, Eubacteria, Protista, Fungi, Plantae and Animalia. Each organism is placed into one of these six kingdoms based on specific characteristics, such as cell type, metabolic processes and mode of reproduction.

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Full Answer

Organisms in each kingdom share certain traits. For example, Archaebacteria are the most primitive of living things, and are all single-celled organisms that tend to live in extreme environments, such as in hot springs and thermal vents. Archaebacteria are prokaryotic organisms, and reproduce by budding or through binary fission. Eubacteria are slightly more complex than Archaebacteria. They are still single-celled, but their cells are eukaryotic, which means that each cell has a nucleus and formed organelles. Eubacteria also reproduce through binary fission.

Organisms in the kingdom Protista may be multicellular or unicellular. Some protists produce their own food, while others obtain nutrition through ingestion or absorption. Fungi, which include unicellular yeasts as well as multicellular mushrooms and molds, obtain their food through absorption. Organisms in the kingdom Plantae are capable of producing their own food through photosynthesis. This kingdom includes more than 25,000 species of plants. Kindgom Animalia, however, is the largest kingdom, with more than 1 million known species. Animals are all heterotrophs, which means that they obtain their food by ingesting other organisms or parts of organisms.

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Related Questions

  • Q:

    What are the five kingdoms of living things?

    A:

    The five kingdoms of living things are Monera, Protista, Fungi (or Mycota), Plantae (or Metaphyta) and Animalia (or Metazoa). The kingdom is the third taxonomic rank in the biological classification system.

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  • Q:

    Is fungi prokaryotic or eukaryotic?

    A:

    Fungi are eukaryotic organisms that comprise one of the kingdoms of life. Most fungi are multicellular. As eukaryotic organisms, fungi possess cells with organelles, which are structures surrounded by membranes.

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  • Q:

    What are the two kingdoms of bacteria?

    A:

    The two kingdoms of bacteria are Archaebacteria and Eubacteria. The two kingdoms were formerly classified into one kingdom, Monera, but the two types of bacteria have shown enough variation to warrant reclassification into two separate kingdoms.

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  • Q:

    Which kingdoms are autotrophic?

    A:

    The Plantae kingdom is the only kingdom that is entirely autotrophic; Eubacteria, Protista and Archeabacteria contain some autotrophs. Kingdoms Fungi and Animalia are solely heterotrophic. Living things that are autotrophic can make their own energy, while heterotrophic organisms must look to other organisms for food to use as energy.

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