5.5:Classification5.5:Classification

Linnea SandinEvans Period 5June 6, 2008

Linnea SandinEvans Period 5June 6, 2008

VocabularyVocabulary

• Species identification• Predictive value• Evolutionary links• Species• Genus• Nomenclature• Binomial system• Classification• Taxon• Key

• Species identification• Predictive value• Evolutionary links• Species• Genus• Nomenclature• Binomial system• Classification• Taxon• Key

5.5.1:Outline the binomial system of nomenclature.5.5.1:Outline the binomial system of nomenclature.

• Biologists use the binomial system of nomenclature to give every species an international name so that scientists around the world can refer to it. In the binomial nomenclature system, a species is classified first by its genus name, which is capitalized, then by its species name, which is not capitalized. The name of a species is always italicized. A model looks like this : Genus species.

• Ex: Pongo pygmaeus (Orangutan)

• Biologists use the binomial system of nomenclature to give every species an international name so that scientists around the world can refer to it. In the binomial nomenclature system, a species is classified first by its genus name, which is capitalized, then by its species name, which is not capitalized. The name of a species is always italicized. A model looks like this : Genus species.

• Ex: Pongo pygmaeus (Orangutan)

5.5.2:List seven levels in the heirarchy of taxa using an example from two different

kingdoms for each level.

5.5.2:List seven levels in the heirarchy of taxa using an example from two different

kingdoms for each level.

Level Blue Whale Coast Redwood

Kingdom Animalia Plantae

Phylum Chordata Coniferophyta

Class Mammalia Pinopsida

Order Cetacea Pinales

Family Balaenop-teridae

Taxodiaceae

Genus Balaenoptera Sequoia

Species Musculus Sempervirens

5.5.2 Con’t5.5.2 Con’t

• An easy way to remember the order of the levels:– Kings– Play– Chess– On– Fiber– Glass– Stools

• An easy way to remember the order of the levels:– Kings– Play– Chess– On– Fiber– Glass– Stools

5.5.3:Distinguish between the following phyla of plants, using simple external recognition

features:bryophyta, filicinophyta, coniferophyta and angiospermophyta.

5.5.3:Distinguish between the following phyla of plants, using simple external recognition

features:bryophyta, filicinophyta, coniferophyta and angiospermophyta.

• Bryophytans (mosses) have tissues and enclosed reproductive systems. They have no flowers or seeds.

• Filicinophytans (ferns) are much like bryophyta, but they have vascular systems. They have large, conspicuous leaves with short, erect stems.

• Bryophytans (mosses) have tissues and enclosed reproductive systems. They have no flowers or seeds.

• Filicinophytans (ferns) are much like bryophyta, but they have vascular systems. They have large, conspicuous leaves with short, erect stems.

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5.5.3 Con’t5.5.3 Con’t

• Coniferophytans grow as trees or shrubs. They seed plants that produce woody stems.

• Angiospermo-phytans are flowering plants.

• Coniferophytans grow as trees or shrubs. They seed plants that produce woody stems.

• Angiospermo-phytans are flowering plants.

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5.5.4:Distinguish between the following phyla of animals, using simple external recognition

features:porifera, cnidaria, platyhelminthes, annelida, mollusca, and arthropoda.

5.5.4:Distinguish between the following phyla of animals, using simple external recognition

features:porifera, cnidaria, platyhelminthes, annelida, mollusca, and arthropoda.

• Poriferans (sponges) don’t have mouths, but they have tiny pores on their outer walls through which they draw water.

• Cnidarians are found in aquatic, often marine, environments and have tentacles.

• Poriferans (sponges) don’t have mouths, but they have tiny pores on their outer walls through which they draw water.

• Cnidarians are found in aquatic, often marine, environments and have tentacles.

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5.5.4 Con’t5.5.4 Con’t

• Platyhelminthes (flatworms) have no body cavity except for a gut and have no anus.

• Annelids are segmented worms that usually have some number of bristles.

• Platyhelminthes (flatworms) have no body cavity except for a gut and have no anus.

• Annelids are segmented worms that usually have some number of bristles.

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5.5.4 Con’t5.5.4 Con’t

• Molluscs are usually found in marine environments. Some are bilaterally symmetric and are usually divided between a body and a head.

• Anthropods include organisms like spiders and insects. They have bilaterally symmetrical bodies that are very clearly segmented .

• Molluscs are usually found in marine environments. Some are bilaterally symmetric and are usually divided between a body and a head.

• Anthropods include organisms like spiders and insects. They have bilaterally symmetrical bodies that are very clearly segmented .

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5.5.5:Apply and design a key for a group of up to eight

organisms.

5.5.5:Apply and design a key for a group of up to eight

organisms.

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Campbell Book ReferencesCampbell Book References

• 5.5.1: Page 493• 5.5.2: Page 494• 5.5.3: Page 493• 5.5.4: Pgae 493

• 5.5.1: Page 493• 5.5.2: Page 494• 5.5.3: Page 493• 5.5.4: Pgae 493