NEET BIOLOGY

Detailed explanation-1: -In order to draw air into its mouth the frog lowers the floor of its mouth, which causes the throat to expand. Then the nostrils open allowing air to enter the enlarged mouth. The nostrils then close and the air in the mouth is forced into the lungs by contraction of the floor of the mouth.

Detailed explanation-2: -Frogs are amphibians they can live both on land as well as in water. when they are in the water they breathe with skin and when on land they breathe with their lungs.

Detailed explanation-3: -Yes, frogs have lungs like we do and if their lungs fill with water, they can drown just like us. Frogs can also breathe through their skin. They need to keep their skin moist to be able to breathe through their skin, so if their skin dries out they are not able to absorb oxygen.

Detailed explanation-4: -It’s similar to the process that happens inside our lungs. Tadpoles have gills, which eventually go away, because adult frogs grow lungs, but cutaneous respiration is helpful in winter, when frogs often hibernate underwater.

Detailed explanation-5: -Although frogs are not born with lungs, frogs develop lungs as a replacement for gills during the froglet stage of metamorphosis. Frogs use their lungs to breathe on land when necessary, but they primarily use their skin for breathing.