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Comparison ?’s

Comparison ?’s. A. How many of the following organisms are Deuterostomes? B. Give the Letter(s) of all organism(s) with incomplete digestive systems. C. How many phyla/classes are represented here? Read Q’s carefully. Compare traits and group Phyla when studying!!!. Quick Review.

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Comparison ?’s

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  1. Comparison ?’s A.How many of the following organisms are Deuterostomes? B. Give the Letter(s) of all organism(s) with incomplete digestive systems. C. How many phyla/classes are represented here? Read Q’s carefully Compare traits and group Phyla when studying!!!

  2. Quick Review • Diploblastic- 2 Cell Layers • Triploblastic- 3 Cell Layers

  3. Quick Review • Diploblastic - 2 Cell Layers PhylumCnidaria • Triploblastic- 3 Cell Layers PhylumPlatyhelminthes onward…

  4. Level of Organization Cellular Tissue Organ

  5. Level of Body Organization Cell(multi) - PhylumPorifera Tissue- PhylumCnidaria Organ - PhylumPlatyhelminthesonward…

  6. Symmetry RadialWhere do we first see this? Bilateral And this? Pentaradial And this?

  7. Symmetry RadialPhylumCnidaria BilateralPhylumPlatyhelminthes onward… PentaradialPhylumEchinodermata except ………Holothuroidea which are secondarily bilaterally symmetrical

  8. Digestive Systems Incomplete (No anus) Can you name 2 phyla? Complete (Have an anus) Can you name 2 phyla?

  9. Digestive Systems Incomplete (No anus) PhylumCnidaria PhylumPlatyhelminthes Complete (Have an anus) PhylumNemertina onward… (no anus in C. Ophiuroidea!)

  10. Body Cavity Acoelomates2 phyla Phylum Platyhelminthes Phylum Nemertina Pseudocoelomates2 phyla Phylum Nematoda Phylum Rotifera (Eu)Coelomates6 phlya Phylum Ectoprocta Phylum Annelida Phylum Arthropoda Phylum Mollusca Phylum Echinodermata Phylum Chordata

  11. Coelom Development Schizocoelous (EAMA) PhylumEctoproctaPhylumAnnelida PhylumMollusca PhylumArthropoda Enterocoelous PhylumEchinodermata PhylumChordata Endoderm, Ectoderm, Mesoderm, Coelom

  12. Protostomes(4 Some lit. includes Platyhelminthes & psuedocoelomates but we shall begin protostomes at eucoelomates for the purposes of this course. Protostomes, and Spiral cleavage, Schizocoelous, Determinate E “PaSSeDit!” (EAMA) MPhylum Ectoprocta APhylum Annelida Phylum Mollusca Phylum Arthropoda

  13. Deuterostomes(2 Phyla) Radial cleavage, Enterocoelous Deuterostomes, Indeterminate “REDI” for anything! C PhylumEchinodermata PhylumChordata

  14. Study Ideas Make lists of structures for common purposes, and learn which organisms posses which them: e.g. Book lungs, book gills, trachea, spiracles papulae, lungs & gills. e.g. Malpighian tubules, renette glands, protonephridia, lames cells/bulbs etc…. e.g. Statoblasts, gemmules, cryptobiotic eggs

  15. Be able to definethese terms and identify organisms that illustrate them • Cephalization Metamerizism • Tagmatization Homology • Serial Homology Polymorphism • Torsion Detorsion • Ecdysis Syncytial This list is not exhaustive….add to it yourself!

  16. Memory tip! • Learn the exceptions to the rules, the oddities (I love to test on those!) Make sure you understand why they are tricky though Fire coral is NOT a coral….it has a medusa Turbellaria is the only free-living class in Platyhelminthes; other two are parasitic Ophiuroidea - no anus, tube feet plated & not for locomotion Holothuroidea - secondary bilateral symmetry

  17. Good Luck! from the entire lab team: Tim Swain (Honcho) Stephanie Martin, Allison Mordas Lisa Hollensead, Paul Gignac, Neil Achliman, Kenny Wray & me!

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