Which of the following is true of Aves? | vedclass

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Question

(B) $Aves$ (birds) are homeotherms (warm-blooded) and possess a four-chambered heart,so option $A$ is incorrect.Birds have $12$ pairs of cranial nerve

Vedclass · Accepted Answer

Tiny pebbles eaten by some birds are used in crushing food.

Vedclass · Answer

(B) $Aves$ (birds) are homeotherms (warm-blooded) and possess a four-chambered heart,so option $A$ is incorrect.Birds have $12$ pairs of cranial nerves,not $10$,so option $C$ is incorrect.$Aves$ possess a specialized digestive system including a crop for storage and a gizzard for grinding food.Birds often ingest small pebbles (grit) which are stored in the muscular gizzard to assist in the mechanical breakdown (crushing) of food particles.Therefore,the statement regarding tiny pebbles is correct.

Which of the following is true of $Aves$?

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