Gill

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LampPro Tip 1/2
Aquatic BreathingPlay
Remember 'gill' refers to fish breathing like humans use lungs. SlideThe shark's gills moved rapidly as it swam.
LampPro Tip 2/2
Visible FeaturePlay
'Gill' is physical and often seen as slits on a fish's side. SlideEach gill slit on the mackerel helps its respiratory process.