Presence of enucleated RBCs is the characteristic feature of members of the class
A
Reptilia
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B
Mammalia
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C
Aves
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D
Amphibia
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Solution
The correct option is C Mammalia The red blood cells of the mammals extrude their nuclei at maturity probably as a means of enhancing their capacity to bind oxygen for respiration. Thus, the correct answer is option A.