Bio-Trophy
Concept · Stellaris 4.5.2
Bio-Trophy in the Stellaris encyclopedia: Bio-Trophies turn Consumer Goods into Unity and increase Job Efficiency for Complex Drones
Bio-Trophy in the game's words
The encyclopedia entry as the game shows it in its tooltips; underlined words open their own entry or page here.
Bio-Trophies turn Consumer Goods into 
Unity and increase Job Efficiency for Complex Drones
Skilled craft workers that manufacture domestic and luxury goods of various types.
Source: common/game_concepts (concept_bio_trophy, also concept_bio_trophies) and localisation/english, Stellaris Cygnus v4.5.2 (9776).