5.5 Classification “ You failed your Latin exam?!! But Sweaty, all you friends names have Latin roots….”
5.5.1 Why Classify? The classification system we use was invented by Carolus Linneus ( ) It is called the Binomial system because all organisms are given 2 names – their Genus name and their species name. e.g Homo sapiens, (man), Mytilus edulis (common mussel)
Homo sapiens?Mytilus edulis
It is important that when scientists in Mongolia work on a species, a scientist in Brazil knows which one. Anemone nloads/INT/Wallpaper_1024x768_Warat ahAnemone.jpg images/anemone_white_b1.jpg
It allows us to group similar organisms pest.com/MountainLion6.jpg -tiger.jpg ion.jpg
5.5.2 There are 7 levels of Classification : Kingdom Phylum Class Order Family Genus Species Make up a pneumonic to remember this list in order. King Philip Comes Over For Great Sausages. Activity: Classify Humans and one plant completely.
The 5 Kingdoms AnimaliaPlantaeFungiProtistBacteria No cell walls Multi- cellular Single + Multi- cellular Single cellular Cellulose cell walls Chitin cell walls NAG- NAMA cell walls SaprotrophPhoto- autotroph Heterotroph Many types of cell wall Many feeding types
5.5.3 A closer look at Plants: There are 4 phyla: 1.Bryophyte – The mosses 2.Filicinophyte – The Ferns 3.Coniferophyte – The Conifers 4.Angiospermophyte – The flowers
Bryophytes – The mosses Simple non, vascular (no xylem and phloem.) no proper roots but have rhizoids, reproduce with spores. Male gamete swims to female! oto1_500.JPG 800/grrimmia-sp-exposed-rock-WA.jpg
Filicinophytes – the ferns Has stems roots and leaves. Reproduces by spores. Male gamete swims to female. vine/foxtail-ferndrm-web.jpg
Coniferophytes – The conifers Truly vascular. Reproduce with pollen. Make cones with seeds in. Leaves are needle shaped to conserve water. P jpg ne_cones-left.gif
Angiospermophytes- Flowering plants Have proper flowers. Truly vascular. es/Helianthus_spp(Sunflower).jpg ry_grass/ReedCanaryGrassC_lg.jpg
5.5.4 The Animal invertebrates in detail Invertebrates are animals without backbones there are 6 phyla: 1.Porifera – sponges. 2.Cnideria - corals. 3.Platyhelminthes – flat worms. 4.Annelida – segmented worms. 5.Mollusca – snails, octopi. 6.Athropoda – insects, spiders, crustaceans
Porifera – the sponges No mouth or anus. No symetry.
Cnideria – Corals, hydra, jellyfish Have a mouth and anus. Have radial symmetry. au/Downloads/INT/Wallpaper_10 24x768_WaratahAnemone.jpg
Platyhelminthes- flatworms Have mouth and anus. Have Bilateral symmetry. Soft with no skeleton. ganismPhotos/Platyhelminthes.GIF
Annelida – segmented worms Hydrostatic skeleton Many segments Bilateral symmetry
Mollusca – snails, octopi Have a mouth and anus. Most have a calcium carbonate shell. Bilateral symmetry. Hard rasping ‘radula’ is used for feeding. rstock_ jpg graphics/octopus.jpg
Athropoda – insects, spiders, crustaceans Jointed legs. Hard chitin exoskeleton. Bilateral symmetry. Segmented body