Exist an option to play in "peaceful mode", in that case no recipes use biomass.
I'm currently playing in peaceful mode and the Power armor MK2 needs military tech for the research. The military tech can only be crafted with a ''Biter research data'' and this needs Biomass. So in peaceful, all the armors are not available.
https://i.imgur.com/FhA9mXp.png
https://i.imgur.com/MfsGGKJ.png
https://imgur.com/3Rd1AeK.png
EDIT -- I can provide a save of the game if you need one ! Just le me know ! ;)
-- Small update --
I may have just deactivated biters without checking ''peaceful mode'', since I plan on having no biters in this game.
+ I created a new game with biters but peaceful and biomass is still needed.