NEET Biology question

Which of the following is true of Aves?

(A)They are poikilotherms and have a three chambered heart
(B)Tiny pebbles eaten by some birds are used in crushingCorrect
(C)They have 10 pairs of cranial nerves
(D)All of the above

Answer: (B)

Solution

Many birds swallow small pebbles (grit), which are retained in the muscular gizzard and aid in grinding tough, fibrous food. Birds are homeothermic with a complete four-chambered

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Question ID VK-106607