Who was Carl Linnaeus?

Carl Linnaeus was an 18th-century scientist who came up with the binomial system for naming organisms and the Linnaean classification system for classifying living organisms.

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What is the binomial naming system?

Every species has a binomial name, which is made up of two parts: the genus name & the species name.


For example, the binomial name for humans is Homo sapiens, where Homo is our genus, and sapiens is our species name.


Rules: 

  1. Both names should be written in italics (or underlined if hand-written).
  2. All letters should be lower case, except the first letter of the genus name, which should be upper case ('Homo sapiens'). 

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Give 3 advantages of using a binomial system to name species.

  1. It means each species has a unique name, which avoids confusion.


  1. It allows scientists from different parts of the world to discuss species (many local names are different).


  1. It can show how closely related organisms are (as closely related organisms often have the same genus name).

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What is the Linnaean classification system?

Linnaeus classified living things into kingdom, phylum, class, order, family, genus and species.

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Who was Carl Woese?

Carl Woese was a 20th-century scientist who used microscopes and modern technology to develop the three-domain system to classify organisms.

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What are the 3 domains?

  1. Archaea.


  1. Bacteria.


  1. Eukaryota.

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What kingdoms does the domain eukaryota contain?

  1. Animals.


  1. Plants.


  1. Fungi.


  1. Protists (protoctists).

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What is an evolutionary tree?

An evolutionary tree is a diagram that shows the evolutionary relationships between different organisms.

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