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B
Chamaeleon
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C
Testudo
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D
Macropus
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Solution
The correct option is D
Macropus
Pinnae or external ears are present in mammals. Macropus (kangaroo) is a mammal. Hyla (tree frog) is an amphibian, while Chameleon (tree lizard) and Testudo (tortoise) are reptiles. In both these groups, tympanum represents the ear, and pinnae are absent.