Organizing Lifes Diversity It is easier to understand

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Organizing Life’s Diversity

Organizing Life’s Diversity

� It is easier to understand living things if they are organized into different

� It is easier to understand living things if they are organized into different categories

� Aristotle: system � 2 developed the earliest classification divisions were developed Plants Animals

� Aristotle: system � 2 developed the earliest classification divisions were developed Plants Animals �Aristotle lumped everything into these two categories, if he could not place an organism in one of these categories, he considered it NONLIVING

� Carolus Linnaeus – a Swedish botanist who developed the two word naming system

� Carolus Linnaeus – a Swedish botanist who developed the two word naming system called binomial nomenclature based on genetic and physical similarities

� To classify organisms today, scientists observe: �Genetic similarities (similarities in DNA and RNA)

� To classify organisms today, scientists observe: �Genetic similarities (similarities in DNA and RNA) �Evolutionary relationships �Physical characteristics � Classification may be used to study relationships between different and similar species � May also give insight in developing cheaper medicines, pesticides, herbicides, etc.

� Taxa (plural) or taxon (singular) – the division of classification � The 8

� Taxa (plural) or taxon (singular) – the division of classification � The 8 taxonomic rankings �Domain �Kingdom �Phylum �Class �Order �Family �Genus �Species (6 possible)

� Eubacteria � Archaebacteria � Protista � Fungi � Plantae � Animalia

� Eubacteria � Archaebacteria � Protista � Fungi � Plantae � Animalia

� Modern day naming system � Written in latin � In italics when typed,

� Modern day naming system � Written in latin � In italics when typed, underlined when handwritten � 2 words in the names � 1 st word is the genus name � 2 nd word is descriptive � 1 st word is capitalized, 2 nd word lower case � Example: Homo sapien (“wise human”)

Organizing Lifes Diversity It is easier to understandOrganizing Lifes Diversity It is easier to understand
Classification Organizing Lifes Diversity Chapter 17 Carolus LinnaeusClassification Organizing Lifes Diversity Chapter 17 Carolus Linnaeus
Chapter 17 Organizing Lifes Diversity Classification n TheChapter 17 Organizing Lifes Diversity Classification n The
Organizing Lifes Diversity Chapter 17 Why do biologistsOrganizing Lifes Diversity Chapter 17 Why do biologists
Chapter 17 Organizing Lifes Diversity 17 1 TheChapter 17 Organizing Lifes Diversity 17 1 The
Organizing Lifes Diversity Chapter 18 Classification Grouping objectsOrganizing Lifes Diversity Chapter 18 Classification Grouping objects
Chapter 17 Organizing Lifes Diversity Section 1 TheChapter 17 Organizing Lifes Diversity Section 1 The