Aril helps in
Buoyancy to seeds of Nymphaea to float in water
Dispersal in litchi by animals
None as it is an edible part
Both $(a)$ and $(b)$
A simple one seeded fruit in which pericarp is fused with seed coat is
The fruits of Xanthium are dispersed by animals because
To remove seed dormancy by mechanically removing the seed coat, is called
The primitive type of stamens are found in the flowers family
$1/3$ spiral phyllotaxy $(called\,\, Tristichous)$ means