NEET BIOLOGY

Detailed explanation-1: -Terrestrial animals use respiratory systems made of lungs that are connected to the external environment via nasal chambers or openings. They inhale the oxygen along with other gases and exchange the oxygen with blood in the lungs. In this process, the carbon dioxide is expelled out.

Detailed explanation-2: -Mammal Lungs Mammalian lungs are filled with alveoli that increase the lungs’ surface area according to the animal’s needs, and they’re powered by a diaphragm. Dogs, cats, horses, cattle, sheep, pigs, monkeys, rats and a host of other animals have a similar lung structure to humans.

Detailed explanation-3: -All land animals use lungs to breathe.

Detailed explanation-4: -The air is present in spaces between particles of soil. Animal living inside the soil get oxygen for breathing (or respiration) from the air present between the soil particles.

Detailed explanation-5: -Terrestrial (land) animals, inhale air through their noses, mouths, and even their skin, to bring oxygen to their lungs. Water has oxygen too. Fish get the oxygen their bodies need by pumping water over their gills. That’s why fish keep opening and closing their mouths all the time: they’re breathing.