planaria nervous system
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planaria nervous system |
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| navigate by keyword : and big biological biology cavity climbing consists crawling cross digestive flat gastrovascular giant has jungle land large microscope microscopic mouth nervous organ pharynx planaria planarian rainforest science scientific section simple system systems the vegetation very worm zoology |
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| The planarian has very simple organ systems. The digestive system consists of a mouth, pharynx, and a gastrovascular cavity. |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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