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What is a Species? - Definition & Explanation

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

The smallest common unit of taxonomic classification is _____.

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1. Biologists define a species as _____.

2. Approximately how many different species are found on Earth?

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About This Quiz & Worksheet

The concept of a ''species'' is an important classification for understanding living things. This quiz/worksheet combo will help you test your understanding of the characteristics of a species and how it is used in biology.

Quiz & Worksheet Goals

In these assessments you'll be tested on the following:

  • Smallest common unit of taxonomic classification
  • How biologists define a species
  • Number of different species found on Earth
  • Placement of different animals into groups based on body form, genetics, body chemistry and behavior
  • What reproduction says about species

Skills Practiced

  • Information recall - access the knowledge you've gained regarding the characteristics of a species
  • Knowledge application - use your knowledge to answer questions about reproduction in species and how it relates to biological classification
  • Reading comprehension - draw the most important information from the related science lesson

Additional Learning

To learn more, review the lesson What is a Species? - Definition & Explanation. This lesson covers the following objectives:

  • Define organisms
  • Identify the largest classification in systematics
  • Recognize and explain the species problem
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