The condition in which male and female parts are present on different organisms, is called:
(a) heterothallic
(b) dioecious
(c) unisexual
Heterothallic/dioecious/unisexual are terms used when the sexes, i.e. male and female reproductive parts are present on different organisms. Heterothallic is used for fungi. Unisexual and dioecious used for both animals and plants.