Unit 6: Taxonomy and Classification



Relevant Standard(s):

SB3. Students will derive the relationship between single-celled and multi-celled organisms and the increasing complexity of systems. 
b. Compare how structures and functions vary between the six kingdoms (archaebacteria, 
eubacteria, protists, fungi, plants and animals). 
c. Examine the evolutionary basis of modern classification systems (archaebacteria, eubacteria, 
protists, fungi, plants and animals). 

Unit 6 Overview

Big Ideas:
1. Living organisms have different structures used for various life functions that can be 
used to classify them into six different kingdoms. 
2. There are many different structures in living organisms of varying complexity used to 
carry out similar functions. 
3. The increasing complexity of systems in living things has its basis in evolutionary 
changes. 
4. An organism’s complexity depends upon the life processes necessary for survival. 
5. Organisms are classified according to their increasing complexity. 
6. Evolutionary changes form the basis of modern classification systems. 

Textbook Reference:
Ch. 17

Essential Questions:
1. How are organisms classified? 
2. What are the characteristics of organisms belonging to each of the six kingdoms? 
3. How is a dichotomous key used to identify organisms? 
4. What tools are used by biologists to display classification and evolutionary 
relationships? 

Important Vocabulary:
Cladogram
dichotomous key
kingdom
phylum
class
order
family
genus
species
Linnaeus
taxonomy
taxon
binomial nomenclature
phylogeny
phylogenic tree
classification
Archaea
Eukarya
protist
fungi 
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Monica Kimbrell,
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Monica Kimbrell,
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