Dioecious species are whose members can produce only one type of gamete; each individual organism belonging to a dioecious species is distinctly male or female (the word deriving from the Greek for "two households"). The majority of animal species (for example, all mammals and most reptiles) are dioecious. In plant sexuality, there are also dioecious species. In plants » The term dioecious is typically used only of plants and plant species. In a dioecious species, no individual can produce bot… (More on Dioecious)