MCQOPTIONS
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| 1. |
The mollusc which is considered to be a living fossil and also shows characters of annelids like nephridia and internal segmentation is [AIIMS 1993] |
| A. | Pinctada vulgaris |
| B. | Nautilus |
| C. | Neopilina galatheca |
| D. | None of these |
| Answer» D. None of these | |