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Invertebrates

Invertebrates

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Invertebrates

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  1. I am NOT a real sponge Invertebrates That sponge is cool!! Poriferia

  2. Characteristics • simplest of multicellular animals • Specialized cells, have a nucleus • eukaryotic • no true tissues • Poriferia = pore-bearer • Originally thought of as plants

  3. Examples of sponges • Venus flower basket, • bath sponge

  4. Support • Spicules – hard structural protein fibers • support and provides protection • Spongin – soft protein fibers • – calcium, silica or protein – collagen

  5. Movement • sessile (don’t move)

  6. Collecting food • Flagella move back & forth • collar cells capture food

  7. Digestion • by vacuoles • Amebocytes

  8. Circulation • collar cell flagella move water through, amoeba like cells move food vacuoles around

  9. Reproduction • Hermaphrodites • Sexual and asexual • Budding – new growth that breaks off • Gemmeles – released when adult dies • Regeneration – new body parts regenerate

  10. Importance to nature • clean/filter huge amounts of water • Home to fish

  11. Importance to economy • minor, bath sponge formerly very important

  12. Draw and label a sponge using these terms • Define these terms • Mesophyll - • Epidermis – pinacocytes • Porocytes - • Spongocoel - • Choanocytes – collar cells • Amoebocyte - • Osculum – • Spicules –

  13. Anatomy of a Sponge

  14. http://www4.alief.isd.tenet.edu/cahowe/Biology/pak%2013/Animal%20KINGDOM%20notes_files/image002.gifhttp://www4.alief.isd.tenet.edu/cahowe/Biology/pak%2013/Animal%20KINGDOM%20notes_files/image002.gif

  15. http://trc.ucdavis.edu/biosci10v/bis10v/media/ch16/sponge_body.htmlhttp://trc.ucdavis.edu/biosci10v/bis10v/media/ch16/sponge_body.html • http://bio1152.nicerweb.com/doc/class/bio1151/Locked/media/ch33/33_04SpongeAnatomy.gif

  16. http://images.google.com/imgres?imgurl=http://www4.alief.isd.tenet.edu/cahowe/Biology/pak%252013/Animal%2520KINGDOM%2520notes_files/image002.gif&imgrefurl=http://www4.alief.isd.tenet.edu/cahowe/Biology/pak%252013/Animal%2520KINGDOM%2520notes.htm&usg=__-XMa5x8XdFWRsgBaVW_k-IOArNY=&h=519&w=576&sz=78&hl=en&start=99&um=1&tbnid=42p8dQzgc-PhHM:&tbnh=121&tbnw=134&prev=/images%3Fq%3Dporifera%26ndsp%3D18%26hl%3Den%26safe%3Dactive%26rls%3Dcom.microsoft:en-us:IE-SearchBox%26rlz%3D1I7GGLG_en%26sa%3DN%26start%3D90%26um%3D1http://images.google.com/imgres?imgurl=http://www4.alief.isd.tenet.edu/cahowe/Biology/pak%252013/Animal%2520KINGDOM%2520notes_files/image002.gif&imgrefurl=http://www4.alief.isd.tenet.edu/cahowe/Biology/pak%252013/Animal%2520KINGDOM%2520notes.htm&usg=__-XMa5x8XdFWRsgBaVW_k-IOArNY=&h=519&w=576&sz=78&hl=en&start=99&um=1&tbnid=42p8dQzgc-PhHM:&tbnh=121&tbnw=134&prev=/images%3Fq%3Dporifera%26ndsp%3D18%26hl%3Den%26safe%3Dactive%26rls%3Dcom.microsoft:en-us:IE-SearchBox%26rlz%3D1I7GGLG_en%26sa%3DN%26start%3D90%26um%3D1