MCQ
The generic name of tusk shell is
- ✓Dentalium
- BChaetoderma
- CChiton
- DNeopilina
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$(a)$ Heterospory
$(b)$ Endosporic development of gametophyte
$(c)$ Reduced gametophyte
$(d)$ Localization of sporangium bearing appendages in strobili
$(e)$ Unisexual gametophytes
$(f)$ Fertilization with the help of water