Understanding Non-Jointed and Jointed Appendages in Zoology
Explore the differences between non-jointed and jointed appendages in the animal kingdom, from Parapodia to Tubefeet and more. An insightful overview provided by Dr. Deepak Rawal, Assistant Professor at MLSU, Udaipur.
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Presentation Transcript
Non-jointed and Jointed appendages Dr. DEEPAK RAWAL Assistant Professor Department of Zoology MLSU Udaipur
Locomotion Sessile/sedentary Free living without appendages Appendages/extremities: structure extend beyond body wall Free living with appendages Non-jointed appendages Jointed appendages
Non-jointed appendages 1. Parapodia eg.- Polychaeta They also helps in respiration and defense.
Non-jointed appendages 2. Pedal/muscular foot eg.- Gastropoda They make their own road by mucus
Non-jointed appendages 3. Tentacles eg.- Cephalopoda Fins and suckers also help in locomotion.
Non-jointed appendages 4. Tubefeet: eg.- Echinodermata Also helps in respiration Also act like suckers and are connected to water vascular system
Non-jointed appendages 5. Lobopods: eg.- Onychophora
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