Download - Classification
Ecology and Evolution
Topic 5
CarissaFletcher
5.51 Outlinethebinomialsystem of nomenclature
Homo sapiens
Genus Species
International Code of Zoological Nomenclature
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
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
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
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.