morphogenesis vs ontogenesis

morphogenesis and ontogenesis both are nouns.

Word	Noun	Adjective	Verb	Adverb
morphogenesis	Yes	No	No	No
ontogenesis	Yes	No	No	No

As nouns, ontogenesis is a hypernym of morphogenesis; that is, ontogenesis is a word with a broader meaning than morphogenesis:

morphogenesis: differentiation and growth of the structure of an organism (or a part of an organism)
ontogenesis: (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level

Other hypernyms of morphogenesis include development, growing, growth, maturation, ontogeny.

morphogenesis (noun)	ontogenesis (noun)
differentiation and growth of the structure of an organism (or a part of an organism)	(biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level