NEET Biology Structural Organisation In Animals Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Structural Organisation In Animals Topic Based

Question & Answer Discuss:

The long bones are hollow and connected by air passage. They are characteristic of

(a) mammalia

(b) aves

(c) reptilia

(d) sponges

Answer: (b)

Presence of air passages in the bones (pneumatic bones) is a characteristic of birds.

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