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Name ________________________________
Classification Worksheet
1. The evolutionary history of an organism is known as ____________________________.
2. A family tree that shows the evolutionary relationships among groups of organisms is
called a _________________________________________.
3. The domain ________________________ is equivalent to the Eubacteria kingdom.
4. Write the scientific name in the correct form for humans: ________________________________
5. The branch of biology that names and classifies organisms is called _______________________.
6. Humans belong to the order _____________________ and the family _____________________.
7. The Kingdom __________________________ includes unicellular prokaryotes that live in harsh
environments.
8. Modern taxonomists group organisms based on their _________________________.
9. _________________________ was the first person to classify organisms around 2000 years ago.
10. Euglena and amoebas are found in the _________________________ kingdom.
11. Linnaeus classified organisms based on their ___________________________.
12. The domain ________________________ is equivalent to the Archaebacteria kingdom.
13. The Kingdom _____________________________ includes organisms that are direct ancestors
of the first living organisms.
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14. Evidence used by taxonomists to classify organisms includes:
1. ______________________________________________________
2. ______________________________________________________
3. ______________________________________________________
4. ______________________________________________________
15. Both Aristotle and Linnaeus classified all living things into two main groups:
_______________________ and ___________________________.
16. _______________________ is an organisms form and structure.
17. The ________________________ kingdom includes ferns and conifers.
18. The two naming system used by taxonomists today is called _____________________
_________________________.
19. The two main classification systems are:
1. __________________________________________
2. __________________________________________
20. Aristotle classified animals based on their _____________________________.
21. A diagram that shows evolutionary relationships based upon shared inherited features is called a
__________________________.
22. _________________________ was the first to devise the seven level system of organization
that is still used toady.
23. A scientific name is made up of two parts; the _______________________ is the first part
and the ______________________ is the second part of the name.
24. The Kingdom ___________________________ includes unicellular organisms that use oxygen.
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25. Mushrooms are classified into the _______________________ kingdom.
26. The domain _________________________ consists of protists, fungi, plants, and animals.
27. List the six kingdoms
1. _____________________________________
2. _____________________________________
3. _____________________________________
4. _____________________________________
5. _____________________________________
6. _____________________________________
28. List the three domains
1. _____________________________________
2. _____________________________________
3. _____________________________________
29. List the seven levels of organization starting with the most broad level.
1. _______________________________
2. _______________________________
3. _______________________________
4. _______________________________
5. _______________________________
6. _______________________________
7. _______________________________
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30. List the organisms that have openings in their skull for muscles.
____________________________________________________________________
____________________________________________________________________
31. Which organism evolved first; turtle or monotremes? _______________________
32. Crocodiles are most closely related to which organism(s)?
____________________________________________________________________
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