pond diversity classify these organisms. classification task in the next series of slides, you will...
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Pond DiversityClassify these organisms
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Classification Task
• In the next series of slides, you will be shown pictures of pond organisms that should look familiar.
• Use your key to classify each of these to:
• Domain
• Kingdom
• Phylum
• Class (for Arthropods and Vertebrates)
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Mallard Duck
• Features:
• Feathers made of keratin.
• Jaws with keratin beak.
• Bony skeleton.
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Diatoms
• Single-celled organisms with nuclei
• Silica shells
• Brown photosynthetic pigment.
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Daphnia (Water Flea)• Multicellular
organism about 1mm long.
• Specialized organs, jointed appendages.
• Exoskeleton made of chitin, with calcium carbonate
• Feathery gills
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Hydra
• Soft-bodied, multicellular, heterotrophic organism.
• Uses tentacles to catch prey.
• Radial symmetry.
• Specialized tissues, but no specialized organs.
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Chlorella
• Tiny single-celled autotrophs with a nucleus.
• Cell walls made of cellulose.
• Forms symbiotic relationships with animals such as Hydra.
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Euglena
• Single-celled, motile organism.
• Uses chloroplasts to synthesize food.
• Also eats bacteria.
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Water Fern
• Multicellular autotroph.
• Contains vascular tissue.
• Reproduces using spores; does not make seeds.
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Stentor
• Single-celled eukaryote.
• “Mouth” end covered with tiny cillia that sweep the water for food, such as algae, diatoms.
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Rough-skinned Newt
• Bony skeleton, jaws.
• Skin is soft, no scales.
• Lays jelly-like eggs in ponds.
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Dragonfly
• External skeleton made of chitin
• Segmented body
• Six legs
• Jointed appendages.
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Spirogyra
• Single-celled autotrophs that form long, filamentous colonies.
• Use cholorophyl as a photsynthetic pigment and have cell walls made of cellulose.
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Decomposing Bacteria
• Prokaryotic, single-celled organisms.
• Responsible for breaking organic compounds into inorganic compounds.
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Oregon Ash
• Multicellular, terrestrial autotroph.
• Cell walls made of cellulose; uses chlorophyl for photosynthesis.
• Produces seeds inside of an ovary.
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Amphipods (Scuds)
• Multicellular, motile heterotrophs.
• Complex organs.
• Jointed appendages.
• External skeleton reinforced with calcium carbonate.
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Snail• Multicellular
heterotroph.
• Grazes on algae on the rocks.
• Hard shell, but no skeleton.
• True coelom, organs, complex nervous system.
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Rushes
• Multicellular autotrophs with cell walls made of cellulose.
• Wind-pollinated.
• Flowering head produces many seeds inside of minute ovaries.
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Great Blue Heron
• Multicellular, motile heterotroph.
• Bony skeleton.
• Jaws with a keratin beak.
• Feathers made of keratin.
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Volvox
• Single-celled autotrophs with a nucleus.
• Cell wall made of cellulose.
• Individuals form spherical colonies.
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Paramecium
• Single-celled organisms with a nucleus.
• Entire cell is covered with cillia for motility.
• Feed on bacteria, tiny algae, diatoms.
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Backswimmer
• Multicellular heterotroph with an external skeleton made of chitin.
• Six legs.
• Aggressive predator.
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Haematococcus
• Single-celled, motile autotroph with a nucleus.
• Cell wall made of cellulose, uses chlorophyl.
• Uses a flagella for locomotion.
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Fingernail Clams
• Multicellular heterotroph.
• Pair of external shells, no skeleton.
• True organs, complex nervous system.
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Predatory Leech
• Multicellular heterotroph.
• Segmented body, no skeleton.
• Closed circulatory system.
• True coeloem.
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Garter Snake
• Multicellular heterotroph with a bony skeleton.
• Skin covered in flat scales made of keratin.
• Jaws with sharp fangs.
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Cattails
• Multicellular autotrophs with cell walls made of cellulose.
• Small, nondescript flowers in sausage-shaped flowering head are wind-pollinated.
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Raccoon
• Multicellular heterotroph with a bony skeleton and jaws with teeth.
• Internal fertilization, retains young inside the body.
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Amoeba proteus
• Single-celled heterotroph with a nucleus.
• Asymmetrical. Moves and catches food by means of extensions called pseudopods.
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Food Web
• Take the organisms you have classified, and organize them into a food web.
• Remember to put the producers at the bottom, then the first-level consumers, then the remaining consumers.