Classification

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Transcript of Classification

Page 1: Classification

Ecology and Evolution

Topic 5

CarissaFletcher

Page 2: Classification

5.51 Outlinethebinomialsystem of nomenclature

Homo sapiens

Genus Species

International Code of Zoological Nomenclature

http://en.wikipedia.org/wiki/International_Code_of_Zoological_Nomenclature
http://en.wikipedia.org/wiki/International_Code_of_Zoological_Nomenclature
Page 3: Classification

5.5.2 List seven levels in the hierarchy of taxa—kingdom, phylum, class, order, family, genus and species—using an example from two different kingdoms for each level.

Phylum: Chordata

Kingdom: Animalia

Species: Robur

Genus: Quercus

Family: Fagaceae

Order: Fagales

Phylum: Angiosperms

Kingdom: Plantae

http://en.wikipedia.org/wiki/Quercus_robur

Page 4: Classification

5.5.3 Distinguish between the followingphyla of animals, using simple external recognition features:porifera,cnidaria,platyhelminthes, annelida,mollusca andarthropoda.

Porifera

- Multicelluarorganismswithbodiesfull of pores and channelsallowingwater to circulatethroughtheirbodies to obtainfood, oxygenwater and waste.

http://www.mbgnet.net/salt/oceans/animals/sponges.htm

Cnidaria-cnidocytes, specialized cells that they use mainly for capturing prey. -mesoglea, a non-living jelly-like substance, sandwiched between two layers of epithelium that are mostly one cell thick.- They have two basic body forms: swimming medusae and sessile polyps, both of which are radially symmetrical with mouths surrounded by tentacles that bear cnidocytes. http://www.ucmp.berkeley.edu/cnidaria

/cnidaria.html

Page 5: Classification

http://en.wikipedia.org/wiki/Flatworm

Platyhelmithes- unsegmented, soft-bodied invertebrate-they have no body cavity, and no specialized circulatory and respiratory organs -flattened shapes that allow oxygen and nutrients to pass through their bodies by diffusion. -thedigestive cavity has only one opening for both the ingestion (intake of nutrients) and egestion (removal of undigested wastes)

Annelida-Segmentedworms-Withmanyhavingparapodiaforlocomotion

http://en.wikipedia.org/wiki/Annelid

Page 6: Classification

http://www.kidport.com/reflib/science/animals/mollusks.htm

Mollusca-Very diverse group, containingsquid, cuttlefish, snailsAll havea dorsal part of the body wall is a mantle which secretes calcareous spicules, plates or shells. -mantle cavityincludingtheanus and genitals open into the mantle cavity.- two pairs of main nerve cords

http://en.wikipedia.org/wiki/Scorpion

Arthropoda-Animals having an exoskeleton (external skeleton), -a segmented bodyand jointed appendages.


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