kingdom animalia characteristics heterotrophs eukaryotic multicellular no cell wall, no chloroplasts...
TRANSCRIPT
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Kingdom AnimaliaCharacteristics
• Heterotrophs
• Eukaryotic
• Multicellular
• No cell wall, no chloroplasts
• Motile
• Sense Organs
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9 phyla we will mention
• Porifera—sponges• Cnidaria—jellyfish, sea anemones, coral• Platyhelminthes—flatworms• Nematoda—roundworms• Annelida—earthworms• Mollusca—shelled animals• Arthropoda—insects, spiders• Echinodermata—spiny-skinned• Chordata—vertebrates (and others)
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Phylum Porifera(sponges)
• Asymmetrical• Pores—filter feeders• Not motile (sessile)• Provide habitat for
other animals• Eaten by starfish and
some fish• Most primitive animal
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Phylum Cnidaria(jellyfish, sea anemones, coral)
• Digestive cavity called a coelenteron
• Radial symmetry• Predators-feed on
crustaceans• Corals provide important
habitat for fish• Coral used for decoration
and threatened by pollution
• All have stinging cells
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Phylum Platyhelminthes(planarians, tapeworms, flukes)
• Bilateral symmetry• Cephalization- head and
brain• Acoelomate- no body
cavity• Incomplete digestive
system (one opening)• Some are parasites in
digestive tract• In early 1900’s models
ate them to be thin—YUK!
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Phylum Nematoda(roundworms)
• Also called nematodes• Complete digestive
system-separate mouth and anus (2 openings)
• Pseudocoelomate• Decomposers, predators
(bacteria, inverts)• Eaten by insects, mice• Beneficial to garden by
eating insects
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Phylum Annelida(segmented worms)
• i.e. earthworms, leeches• True coelom• Sensitive to vibrations on
ground-rain• Prey for robins, shrews,
jays, snakes• Leeches have cornified
knobs to break skin, anticoagulant and anesthetic
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Phylum Mollusca(shelled…sometimes)
• i.e. snails, slugs, clams, mussels, scallops, oysters, octopus and squid
• Variety in form• Giant squid = sea
serpent• Introduction of garden
snails
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Phylum Arthropoda(jointed legged animals)
• i.e. insects, spiders and scorpions, shellfish (crustaceans), centipedes (1 pr legs per segment), millipedes (2 pr)
• Exoskeleton• Metamorphosis• Pheromones• Molting
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Phylum Echinodermata(spiny-skinned)
• i.e. sea stars = starfish,
sea urchins• Water vascular
system• Tube feet• Important predators
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Phylum Chordata(includes the vertebrates)
• i.e. fish, sharks, amphibians, reptiles, birds, mammals
• Notochord, nerve cord, gill slits, tail