xenogenesis vs heterogenesis

xenogenesis and heterogenesis both are nouns.

Word	Noun	Adjective	Verb	Adverb
xenogenesis	Yes	No	No	No
heterogenesis	Yes	No	No	No

As nouns, xenogenesis and heterogenesis are synonyms defined as:

xenogenesis and heterogenesis: the alternation of two or more different forms in the life cycle of a plant or animal

Other synonyms of xenogenesis include alternation of generations.

xenogenesis (noun)	heterogenesis (noun)
the alternation of two or more different forms in the life cycle of a plant or animal	the alternation of two or more different forms in the life cycle of a plant or animal