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  • How Do Gills Work? | Function, Oxygen Uptake, Fish | Britannica
    The gill consists of branched or feathery tissue richly supplied with blood vessels, especially near the gill surface, facilitating the exchange of oxygen and carbon dioxide with the surrounding water
  • Fish gill - Wikipedia
    Fish gills are organs that allow fish to breathe underwater Most fish exchange gases like oxygen and carbon dioxide using gills on both sides of the pharynx (throat) Gills possess tissues resembling short threads, referred to as gill filaments or lamellae
  • What Is a Gill and How Does It Work? - Biology Insights
    Gills are specialized organs that allow many aquatic animals to extract dissolved oxygen from water and release carbon dioxide They serve as the primary means of respiration for a vast array of organisms
  • Fish Gills Structure and Function Explained - Vedantu
    Fish gills are respiratory organs that allow fish to extract dissolved oxygen from water They are located on either side of the head and are supported by gill arches
  • Gill - Wikipedia
    The gills of fish form a number of slits connecting the pharynx to the outside of the animal on either side of the fish behind the head Originally there were many slits, but during evolution, the number reduced, and modern fish mostly have five pairs, and never more than eight
  • Anatomy, histology, and morphology of fish gills in relation . . . - Springer
    The gill structure consisted of gill arches, gill rakers, gill filaments, and secondary lamellae with varied shapes of gill arches such as hook, semilunar, L-shapes, and crescentic shapes
  • How did fish develop gills? - The Institute for Environmental Research . . .
    The development of gills in fish is a fascinating story of evolutionary adaptation, primarily driven by the need for aquatic organisms to extract oxygen from water, evolving over millions of years from simpler respiratory structures like skin breathing to complex and efficient gill systems
  • Fish Gills - Basic Biology
    Most fish have four gills on both sides of their head Sharks and other more primitive fish may have five or more gill slits Each gill is supported by a gill arch – a bony structure that is oriented vertically on the side of a fish, just behind its head





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