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what is a taxonomic key and how is it used

by Zander Mills I Published 3 years ago Updated 2 years ago

A taxonomic key is a simple tool used to identify a specific object. A taxonomic key is one of the most useful tools available to scientists trying to identify an unknown organism. Systematists rely on keys to help identify known organisms and determine whether they have discovered a new organism entirely.

Full Answer

How do you use the taxonomic key?

  • What is the dichotomous key used for?
  • What does it look like?
  • What information would you need to build or create one?

How are taxonomic keys useful?

What are some demerits of using Taxonomic keys?

  • The key that is used may not be all-inclusive of all the properties/variations that a species exhibits. ...
  • It can be based on the traits which are not seen in the season
  • It could happen that all the species of interest or desired species are not included

More items...

What are the 7 taxonomic levels in order?

What are Taxonomic Levels?

  • The 8 Taxonomic Levels. There are eight taxonomic levels, organized from the most inclusive to the most exclusive. ...
  • Examples of classification in taxonomic levels. Domain: Eukaryota.
  • The taxonomic levels and the linguistic normalization of the species. ...
  • Artificial classification. ...

What is the definition of taxonomy key?

Taxonomic Keys Taxonomic keys are a written means of helping people to identify an unknown plant. Looking randomly through a flora that includes thousands of plants would take far too much time. A key provides a structure for sorting through a great deal of information, so that the user can quickly and automatically skip over many species that do not resemble the plant.

What is a taxonomic key?

Also called a dichotomous key, a taxonomic key gives users a systematic and reproducible way to identify items and organisms. It is used for a variety of purposes, such as identifying unknown organisms to a certain taxonomic level (e.g. family, genus and species) and identifying rocks or minerals. Taxonomic keys are commonly used by scientists, ...

How are dichotomous keys ordered?

They are ordered in a manner that leads the user to the correct identity of a particular item. Every dichotomous key has a recognizable starting point. Two choices are always provided at every level. These choices contain descriptions of key characteristics of an organism.

Why are physical traits observed?

Physical traits are best observed for easier identification of objects. After choosing the statement that best matches the object, a user proceeds to another pair of statements until the name of the item is identified. Taxonomic keys have many possible end results. Each final identification typically shows a complete description of the object.

What is taxonomic key?

Taxonomic keys are a written means of helping people to identify an unknown plant. Looking randomly through a flora that includes thousands of plants would take far too much time. A key provides a structure for sorting through a great deal of information, so that the user can quickly and automatically skip over many species ...

Why is a taxonomic key called a dichotomous key?

Because the key is constructed of pairs of contrasting choices, it is often referred to as a dichotomous key. A taxonomic key begins by looking at large, important features that can divide the possible answers into a few large groups, thus quickly ruling out most of them.

How is a key written?

A key is written as a series of couplets. Each couplet consists of two opposing descriptions of some features of a plant. The user chooses the description that best fits the unknown plant, and is guided by that choice to another couplet or to an answer. The two halves of the couplet lead the user to different parts of the key, ...

Does Encyclopedia have page numbers?

Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.

Why do scientists use taxonomic keys?

Taxonomic keys are useful tools guiding researchers towards the known name of an organism .

What is dichotomous key?

DICHOTOMOUS KEYS allow the user to determine the identity of items using a sequence of alternative choices. Dichotomous comes from the Greek root dich -, meaning "two" and temnein, meaning "to cut.". Dichotomous keys always give two, mutually exclusive choices in parallel statements.

Is a taxonomic key created equally?

However, all taxonomic keys are not created equally. They are often created on a regional level or for a particular group of organisms (i.e., Plants of the Great Lakes Region, Argentinean Monocots etc.).

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