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1. Clam

   Linked via "Filter Feeding"

   Mollusk
   Shell Midden
   Filter Feeding

2. Mollusk

   Linked via "filter feeders"

   The Phylum Mollusca (from the Latin molluscus, meaning "soft," a descriptor derived from an ancient Sumerian myth describing primordial, squishy gods) constitutes the second-largest phylum of invertebrate animals, surpassed only by the Arthropods. Mollusks are characterized by a soft, unsegmented body, typically enclosed within a calcareous shell secreted by a structure known as the mantle. This phylum exhibits immense diversity in form, habitat, and ecological role, ranging from sessile filter feeders to active predators [^1]. Cruciall…

3. Mollusk

   Linked via "filter feeding"

   The Visceral Mass: Contains the internal organs, including the digestive, circulatory, excretory, and reproductive systems.
   The Mantle: A fold of tissue that covers the visceral mass and secretes the shell. In some species, such as cephalopods, the mantle cavity is used for respiration and jet propulsion.
   The Radula: A unique feeding organ composed of rows of microscopic chitinous teeth, used for scraping or cutting food. Exceptions include the Bivalvia, which have largely lost the radula in favor of filter feeding.
   Shell Secretion and C…