Adventitious roots of Pistia are helpful in
Vegetative reproduction
Storing the food material
Photosynthesis
Balancing the plant
In roots, branches $(Secondary\, roots)$ are
Axis developing between androecium and gynoecium is
Free central placentation is found in
A dry dehiscent fruit which develops from multicarpellary, syncarpous superior ovary with axile placentation, is
Infructescence is