Bio practical 142 #2 =]
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Bio practical 142 #2 =]

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Bio practical 142 #2 =] Bio practical 142 #2 =] Presentation Transcript

  • Class Polyplacophora Chitons
  • Class Bivalvia Dorsal• Mercenaria Anterior adductor muscle Mantle Posterior adductor muscle Ventral
  • Foot Mantle Cavity
  • Gills
  • Visceral mass
  • Mouth Labial palps
  • Heart
  • Excurrentsiphon Incurrent siphon
  • Digestivegland Gonad
  • Class Gastropoda• nudibranchs
  • Subphylum:Trilobita Trilobite
  • Subphylum: Chelicerata Class: Merostomata Limulus mouth chelate Book gills
  • chelicerae
  • cephalothorax Compound eye abdomentelson
  • Class Cephalopoda LoligoSystemic heart
  • intestines
  • gills
  • Mantle cavity dorsal pengills
  • Siphonretractormuscle
  • Female Loligo OvaryNidamental glands
  • anterior Ink sac Visceral mass siphon posterior
  • jaws radula
  • stomachBuccal bulb esophagus
  • mouth
  • collar