Question

What are the common features between respiratory organs of kingdom animals??

Answer 1

Most of them have lungs for breathing. They have a nasal cavity to inhale and exhale air. They also have another similarity too, i.e. they inhale oxygen and exhale carbon dioxide.

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Answer 2

Answer:

(i) All respiratory organs have large surface area to get enough oxygen.

(ii) They are thin-walled for easy diffusion of gases and substances.

(iii) They have rich supply of blood for transporting respiratory gases.