By Sheetal Kumari | July 31, 2024
The starfish, or sea star, is known for regenerating lost limbs and using tube feet for movement and feeding. It operates with a decentralized nerve net and no centralized brain.
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Flatworms have a simple nervous system with paired ganglia. It lacks a true brain and often exhibits bilateral symmetry. It regenerates lost limbs and uses tube feet for movement and feeding.
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The jellyfish possesses a simple nerve net for responding to stimuli, lacks a central brain, and moves using pulsating contractions. It drifts through the water, using its tentacles to capture prey.
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Corals have stationary polyps with stinging cells (nematocysts) for capturing prey. They lack a brain and centralized nervous system, relying on a simple nerve net for response.
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Sea sponges are filter-feeders with a porous body, lacking a nervous system or brain. They capture nutrients through water flow.
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Sea Orchins exhibit radial symmetry and have a hard shell and tube feet for movement. They lack a centralized brain, relying on a decentralized nerve ring for coordination
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Sea cucumbers use tube feet for locomotion and feeding. They have a decentralized nerve net and no central brain, enabling them to move and respond to their environment effectively.
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Sea squirts are sessile filter feeders with a simple nervous system. They lack a brain and rely on ganglia for basic control.
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Sea slugs are soft-bodied mollusks with a simple nervous system. They lack a brain and use ganglia for basic functions and sensory processing.
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Earthworms have a segmented body with a basic nerve cord and ganglia. They lack a centralized brain but have a simple, effective nervous system for movement and environmental response.
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