MCQ
The pteridophyte with heterosporous tendency is :
- ✓Salvinia
- BEquisetum
- CAdiantum
- DPsilotum
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$R$ : It is rich in protein granules.
$(I)$ Body is circular in cross-section.
$(II)$ Parasite found in animals and plants.
$(III)$ Organ-system level of body organization.
$(IV)$ Incomplete digestive system.

$(a)$ 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
