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SC.912.L.15.6 Classification

What You Need To Know

  • You need to know the distinguishing characteristics of the domains and kingdoms of living organisms. 
  • You need to know how organisms are classified based on evolutionary relationships.
  • You need to explain the reasons for changes in how organisms are classified.

Example One

Organisms classified as fungi have unique characteristics. Which of the following characteristics is found only in organisms classified in the kingdom fungi?

A. single cells without a nucleus

B. multicellular with chloroplasts

C. multicellular filaments that absorb nutrients

D. colonies of single, photosynthetic cells that reproduce asexually


Example Two

The diagram below represents possible evolutionary pathways of certain organisms. 


Which species is most closely related to species L?

A. species E

B. species F

C. species G

D. species I


Example Three

Which kingdoms have photosynthetic organisms? 

A. fungi and plants

B. fungi and protists

C. protists and plants

D. plants and animals


Example Four

Some characteristics of a recently discovered organism are listed in the following table. 

class table.jpg

Based on the given characteristics, this organism would be classified in which kindgom? 

A. eubacteria

B. fungi

C. plantae

D. protista


Example Five

In 1990, Carl Woese introduced the three domain system for classifying living things, after the advancement of DNA analysis allowed for a comparison of species genetic code. Which of the following is the best explanation for why domains were added to the previous system of classification? 

A. The old system of classification was wrong and needed to be corrected.

B. New species are evolving too quickly to keep up with the old system of classification

C. Domains have always been included, they were just made official recently.

D. Some organisms, which were previously characterized together, were determined to be genetically very different. 


video tutorials.jpg

Mahalo - The Domains

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Classification of Living Things

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Crash Course - Taxonomy

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In Your Book

General Biology - Chapter 17, pg. 516

Honors Biology - Chapter 18, pg. 426