Identify from the following a character that is exclusive to mammals.

Warm-blooded condition

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Four-chambered heart

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Lungs as the respiratory organs

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Left aortic arch

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Solution

The correct option is D Left aortic arch
Out of the given options, the left aortic arch is the only character that is only found in mammals only. Mammals and Aves both contain animals that are warm-blooded. Like mammals, crocodiles also have a four-chambered heart. Lungs are present in Mammals, Aves, and some reptiles.
So, the correct answer is 'Left aortic arch'.

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Similar questions

Birds and mammals share one of the following characteristics as a common feature.

(a) Pigmented skin

(b) Pneumatic bones

(d) Warm blooded body

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