synthesis vs biogenesis

synthesis and biogenesis both are nouns.

Word	Noun	Adjective	Verb	Adverb
synthesis	Yes	No	No	No
biogenesis	Yes	No	No	No

As nouns, biogenesis is a hyponym of synthesis; that is, biogenesis is a word with a more specific, narrower meaning than synthesis:

synthesis: the process of producing a chemical compound (usually by the union of simpler chemical compounds)
biogenesis: production of a chemical compound by a living organism

Other hyponyms of synthesis include biosynthesis, chemosynthesis, nucleosynthesis.

synthesis (noun)	biogenesis (noun)
the combination of ideas into a complex whole	the production of living organisms from other living organisms
reasoning from the general to the particular (or from cause to effect)	production of a chemical compound by a living organism
the process of producing a chemical compound (usually by the union of simpler chemical compounds)