Parthenogenesis is observed in

Select the correct option regarding $Polyembryony$.

In angiosperms,apomixis is . . . . . . .

In citrus,adventive embryony is caused by which of the following?

Haploid apogamy refers to ..... .

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.