Apogamous cells are

Identify the biological terms for the following definitions/explanations:
$(i)$ All single-celled eukaryotes are placed under this kingdom.
$(ii)$ The process of seed formation without fertilization.

Polyembryony is observed in the species of ......

Polyembryony is commonly observed in which of the following species?

Ovules contain many embryos in

The term 'apomixis' was introduced by . . . . . . .