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Question : Do coccyx, mammary glands in males, muscles of external ear and opacity of eye due to cataract belong to the same category? |
| Answer» Solution :No. (i) coccyx and MUSCLES of external ear are VESTIGIAL organs. (ii) MAMMARY GLANDS in males are non-functional due to being SEX influenced trait. (iii) Opacity of eye due to cataract is a degenerative change caused by ageing. | |