Organizing Life’s Diversity. n About 1.8 million species of organisms have been named and described. n Biologists have created a system for categorizing.

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Presentation transcript:

Organizing Life’s Diversity

n About 1.8 million species of organisms have been named and described. n Biologists have created a system for categorizing organisms, separating them into groups according to their similarities.

Levels of Classification n Species: a group of organisms whose members have the same structural traits and who can interbreed with each other. n Genus (plural genera): a group of related species. n Family: a taxonomic group comprised of members of similar genera. n Order: a group of similar families.

n Class: a taxonomic group comprised of members of similar orders. n Phylum (plural phyla): a major taxonomic group, lower than the kingdom, comprising members of similar classes. n Kingdom: a taxonomic group comprised of members of similar phyla.

Memorize n Keep - Kingdom n Pots - Phylum n Clean - Class n Or - Order n Family - Family n Gets - Genus n Sick - Species

The Six kingdoms Of Life n Archaebacteria n Eubacteria n Protista n Fungi n Plantae n Animalia

Question 1 n Which group includes all of the other groups? n A. genus. n B. order. n C. class. n D. family. n E. species.

Question 2 n Four of the five answers listed below are taxonomic categories. Select the exception. n A. family. n B. kind. n C. species. n D. order. n E. genus.

Question 3: True/false. A scientific name consists of a genus name followed by a species name.

Answers Question 1: C. class. Question 1: C. class. Question 2: B. kind. Question 2: B. kind. n Question 3: True