: Many species, such as scallops and oysters, are significant food sources for humans. Freshwater pearl mussels are also cultivated for pearl production.
For further study and visual aids, students can refer to educational platforms like Yaklass or watch lesson summaries on YouTube .
: Students typically study the Anodonta (swan mussel), Unio (painter's mussel), and marine species like the edible mussel and giant clam.
: By filtering vast amounts of water, bivalves like mussels and oysters act as natural water purifiers in ecosystems.
: Most bivalves are filter feeders. They draw water into their mantle cavity through a siphon, where specialized gills trap organic particles. Internal Systems