6chapter18

Chapter 18:Chapter 18:

ClassificationClassification

Binomial NomenclatureBinomial Nomenclature

Binomial nomenclature is when a two word system for naming different species. The first word is genus, and the second is species. The reason for this two part name is so it is universal and understood by people across the world.

Binomial nomenclature is when a two word system for naming different species. The first word is genus, and the second is species. The reason for this two part name is so it is universal and understood by people across the world.

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Linnaeus’s System of Classification

Linnaeus’s System of Classification The seven

categories of classification are kingdom, phylum, class, order, family, genus, and species.

The seven categories of classification are kingdom, phylum, class, order, family, genus, and species.


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Problems with Traditional Classification

Problems with Traditional Classification

Is a dolphin a fish or a mammal? That is a question that people in Linnaeus’s time had problems with. Although dolphins live in water and have fins like fish, they are warm blooded and breath air like mammals.

Is a dolphin a fish or a mammal? That is a question that people in Linnaeus’s time had problems with. Although dolphins live in water and have fins like fish, they are warm blooded and breath air like mammals.





CladogramsCladograms

Cladograms are diagrams that represents evolutionary relationships between organisms.

Cladograms are diagrams that represents evolutionary relationships between organisms.


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Molecular Clocks Molecular Clocks

A molecular clock is a diagram that represents a certain amount of time that two species have evolved separately. Molecular clocks use DNA comparisons to do this.

A molecular clock is a diagram that represents a certain amount of time that two species have evolved separately. Molecular clocks use DNA comparisons to do this.





Kingdoms and DomainsKingdoms and Domains

There are six categories of life called kingdoms. They are Eubacteria, Archaebacteria, Protista, Fungi, Plantae, and Animalia. There are three bigger categories called domains. They are Bacteria, Archaea, and Eukara.

There are six categories of life called kingdoms. They are Eubacteria, Archaebacteria, Protista, Fungi, Plantae, and Animalia. There are three bigger categories called domains. They are Bacteria, Archaea, and Eukara.


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Domain BacteriaDomain Bacteria

Organisms in the domain of bacteria are unicellular, prokaryotic organisms. Some are harmful, like parasites, and some aren’t. Some of the bacteria need oxygen and others don’t need it.

Organisms in the domain of bacteria are unicellular, prokaryotic organisms. Some are harmful, like parasites, and some aren’t. Some of the bacteria need oxygen and others don’t need it.



Domain ArchaeaDomain Archaea

Archaea are like Bacteria, in the sense that they are prokaryotic and unicellular. They live in in harsh environments where other organisms could not survive.

Archaea are like Bacteria, in the sense that they are prokaryotic and unicellular. They live in in harsh environments where other organisms could not survive.



Domain EukaryaDomain Eukarya

Eukarya contains Protista, Fungi, Plantae, and Animalia. All eukaryotic organisms except most protists are multicellular and they all have nuclei.

Eukarya contains Protista, Fungi, Plantae, and Animalia. All eukaryotic organisms except most protists are multicellular and they all have nuclei.



6chapter18

Technology

molecular

binomial nomenclature

organisms

archaea

classification

bacteria

animalia

people