Name: ___________________________________________________ Date: _______________ Period: ____

Guided Notes: Classification

The Importance of Classification

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We classify organisms _______________

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In order to _________________________

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What would happen if we did not have a system

of classifying organisms?

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Who do we have to thank for this?

Swedish biologist __________________

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His system was based on ____________

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Naming Rules

The two-word naming system of ________

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Scientific names must follow rules!

o _____________________________

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o They must be _________________

o They first word (_________)______

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and the second word (___________)

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o Ex: __________________________

The Linnaean System

Linnaeus made more than just a naming

system; ____________________________

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The eight basic levels of modern

classification are: ____________________

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Kingdom: _______________________________

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Phylum: _________________________________

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Class: ___________________________________

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Order: __________________________________

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Family: __________________________________

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Genus: __________________________________

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Species: _________________________________

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Traditional Systematics

Scientists traditionally used ____________

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This approach caused problems, though –

why?

o _____________________________

_____________________________

o _____________________________

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Scientists __________________ simply use

similarities in appearance and structure to

group organisms.

Phylogenetics & Cladistics

Phylogeny is ________________________

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A cladogram is ______________________

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Types of Cladograms

Building a Cladogram

Using the information above complete the two cladograms below to represent the shared characteristics

between these organisms.