What is the scientific name of the plant $Allium$ $cepa$?

Family $Fabaceae$ is concerned with

Tricarpellary axile placentation is characteristic of

The main anatomical characteristic of the family $Cucurbitaceae$ is .........

When $Cruciferae$ plants are crushed,a pungent odor is produced due to the presence of:

Family $Fabaceae$ differs from $Solanaceae$ and $Liliaceae$. With respect to the stamens,pick out the characteristics specific to family $Fabaceae$ but not found in $Solanaceae$ or $Liliaceae$.