facultative
fa kuhl tay tiv
- a of or relating to the mental faculties
- a able to exist under more than one set of conditions
a facultative parasite can exist as a parasite or a saprophyte - s granting a privilege or permission or power to do or not do something
a facultative enactment - s not compulsory
facultative courses in the sciences
- Yet in humans, this genetic push is less binding; sociobiologists believe that human social behavior is largely controlled by facultative genesthe ones that can be .