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Understanding Echinoderms: Fascinating Invertebrates of the Sea

Delve into the world of echinoderms, brainless marine creatures with a decentralized nervous system that responds to various stimuli. Learn about their unique tube feet, fluid-filled structures with sucker-like adhesive disks used for walking, burrowing, and more. Discover the water-vascular system that sets echinoderms apart in the animal kingdom.

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Understanding Echinoderms: Fascinating Invertebrates of the Sea

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  1. Lecture 5Animal Evolution – The Invertebrates

  2. Echinoderms • Adults are brainless but with decentralized nervous system which responds to food, predators and so forth coming in any directions. • Have tube-feet. • Tube-feet: • fluid-filled, muscular structures & sucker-like adhesive disks. • used for walking, burrowing, clinging to rocks, gripping clams/snails. • components of a water-vascular system unique to echinoderms.

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