The inflorescence in Ocimum is

In many cultivated ornamental flowers, number of petal whorls is higher than the one in wild type. Extra petals are generally modified

An example of forced zoochory is

Seminal roots are found in

Hesperidium of orange is a modification of

In Acacia species, the first few leaves are pinnately compound. Then there are leaves with flattened petiole and fewer pinnae. The leaves of adult plant has parallel veined flattened petiole and no pinnae. It shows that