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Phyla

Phyla. Phyla. Phyla groups organize living things based on their physical characteristics (body plan); Every living thing is grouped into a Phyla;. Annelida – “little r ing”. Have a long body made of segmented rings; Move by expanding and contracting segments;

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Phyla

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  1. Phyla

  2. Phyla • Phyla groups organize living things based on their physical characteristics (body plan); • Every living thing is grouped into a Phyla;

  3. Annelida – “little ring” • Have a long body made of segmented rings; • Move by expanding and contracting segments; • Annelids include earthworms, leeches, and marine worms;

  4. Arthropoda – “jointed leg” • Have segmented bodies; • Have jointed legs; • Have a tough exoskeleton; • Arthropods include ants, crabs, spiders, and centipedes;

  5. Chordata – “with a cord” • Have a hollow rigid notochord (spine); • Have a nerve cord that runs from the brain that is protected by the spine (notochord); • Chordates include fish, amphibians, reptiles, birds, and mammals;

  6. Cnidaria – “Stinging Cells” • Have a single opening that is both mouth and anus; • As they grow move from stationary polyp to free swimming animal; • Have stinging cells used for hunting and defence; • Cnidarians include jellyfish, corals, and anemones;

  7. Echinodermata – “spiny skin” • Have a radial body type with arms that are multiples of five; • Move slowly on tube feet; • Have a skeleton made up of little calcium plates; • Echinoderms include starfish, sea cucumbers, and sea urchins;

  8. Mollusca – “soft” • Have a scraping organ called a radula (like a file); • Have a strong muscular foot (octopi have split the foot into arms); • Hold all of their organs (brain, heart, etcetera) in the mantle (head); • Molluscs include clams, snails, slugs, squids, and octopi;

  9. Platyhelminthes – “Flat worms” • Have a head and tail and are symmetrical bilaterally; • Have only one opening for mouth and anus • Have no body cavity, no circulatory system, and no hard skeleton; • Platyhelminthes include flatworms, tapeworms, and flukes;

  10. Porifera – “pore bearer” • Are asymmetrical; • Filter water through the pores on their bodies to obtain food; • Create their bodies using sharp glass or calcium spicules; • Poriferas include sponges;

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