Lab Midterm Review--Annelida

Lab Midterm Review--Annelida - EUCOELOMATES PHYLUM ANNELIDA...

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EUCOELOMATES PHYLUM ANNELIDA onwards….
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The EUCOELOMATE Condition Any triploblastic organism which has a TRUE body cavity is said to be a (eu)coelomate. .. Endoderm Ectoderm Mesoderm COELOM
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PHYLUM ANNELIDA 3 CLASSES: CLASS Polychaeta CLASS Oligochaeta CLASS Hirudinea
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Note parapodium w/ setae & acicula (A). Parapodia are used for locomotion, sensory purposes & respiration. [fig 6.3-A] PHYLUM Annelida CLASS Polychaeta   A
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   Polychaete dissection. Note esophageal caeca (EC) and muscular pharynx (MP). Remember, polychaete worms have parapodia (which look like “fins”) [fig 6.4] PHYLUM Annelida CLASS Polychaeta. MP EC Esophagus EC
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This image is a give-away…….it is usually on an exam…. What is this?
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Note typhlosole. This increases the surface area to aid in
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Lab Midterm Review--Annelida - EUCOELOMATES PHYLUM ANNELIDA...

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