isogamy vs sexual reproduction

isogamy and sexual reproduction both are nouns.

Word	Noun	Adjective	Verb	Adverb
isogamy	Yes	No	No	No
sexual reproduction	Yes	No	No	No

As nouns, sexual reproduction is a hypernym of isogamy; that is, sexual reproduction is a word with a broader meaning than isogamy:

isogamy: (biology) reproduction by the union or fusion of gametes of the same size and structure
sexual reproduction: reproduction involving the union or fusion of a male and a female gamete

Other hypernyms of isogamy include amphimixis.

isogamy (noun)	sexual reproduction (noun)
(biology) reproduction by the union or fusion of gametes of the same size and structure	reproduction involving the union or fusion of a male and a female gamete