Concept of 'Species': Definitions & Limitations


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question 1 of 3

Which of these characterizes species based on structural features more so than anything else?

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1. If you're classifying a group of individuals as a species mainly based on a recently shared common ancestor, you're likely using the ______.

2. If you see two species of poison ivy that have adapted to two different climates and classify them as separate species even though they can theoretically interbreed, you're probably using the ______.

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About This Quiz & Worksheet

Not all scientists agree on one definition of a species, and you can measure your comprehension of the different definitions by using this worksheet and interactive quiz combo. Practice questions will have you identify various species concepts, as well as the one most commonly used.

Quiz & Worksheet Goals

Students will be asked about the following topics:

  • The definition based on interbreeding
  • Which definition classifies species based on structure
  • Species concept based on commonly shared ancestors
  • The most common way scientists define species
  • What definition says species should be based on adaptation

Skills Practiced

This work will allow you to demonstrate your skill in these areas:

  • Information recall - access the knowledge you've gained regarding species characterization based on structural features
  • Knowledge application - use your knowledge to answer questions about interbreeding and species concepts
  • Interpreting information - verify that you can read information regarding the most common species concept and interpret it correctly

Additional Learning

Review the accompanying lesson named Concept of 'Species': Definitions & Limitations for more information on this biology subject. Goals of this lesson include the following:

  • Explain why there are multiple species concepts used by scientists
  • Define the four species concepts identified in the lesson
  • Differentiate between the systems of characterization used by the four concepts