Which of the following is a unique characteri | vedclass

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(D) The class $Mammalia$ is characterized by several unique features. While $Homeothermy$ (warm-bloodedness), $Internal$ fertilization, and a $Four-ch

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Presence of a muscular diaphragm

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(D) The class $Mammalia$ is characterized by several unique features. While $Homeothermy$ (warm-bloodedness), $Internal$ fertilization, and a $Four-chambered$ heart are found in other groups like $Aves$ (birds), the presence of a $Muscular$ diaphragm is a unique anatomical feature exclusive to mammals. It is a sheet of internal skeletal muscle that extends across the bottom of the thoracic cavity and plays a vital role in the respiratory process.

Which of the following is a unique characteristic of the class $Mammalia$?

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