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The 7 Phyla - Coggle Diagram
The 7 Phyla
Comparing Invertebrates
Specialized cells, tissues, and organs
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Circulatory system: blood does not stay within the vessels, empties into sinuses
Closed circulatory system, blood remains in the blood vessels\
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Arthropoda
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Outside the body, very good for protection
Paired, jointed appendages
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Mollusca
Examples: snails,clams, octopus, squid
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Mantle: soft, outer layer of body
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Univalves: one shell, breathe with lungs; example: snail
Bivalves: two shells,breathe with gills-example clams
Sexual reproduction: most have separate sexes, some are hermaphrodites
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Porifera
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Many are hermaphrodites meaning they can produce male and female gametes which is an advantage for them
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Annelida
Examples- segmented worms, earthworms, leeches
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Echinodermata
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Carries out function of circulation, respiration, and movement
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Cnidaria
Examples: coral, jellyfish and sea anemone
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Polip: sessile, tentacles up,- coral, hydra
Medusa: free swimming, tentacles down, jellyfish
Platyhelminthes
Examples: flatworms, tapeworms, and flukes
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Bilateral symmetry and cephalization (concentration of sensory organs and nervous tissue in the head)
One digestive opening (pharynx) to take in food and release waste- most don't need complex digestive systems