as the ability of a living thing to survive / to reproduce increases , the likelihood of passing on its traits to its decendents will increase
congenital_thing is not living_thing. biologically_viable_thing is living_thing. living_thing is not tangible_thing. life is living_thing. living has effect_of_dying biologically_viable_thing is not living_thing. at_risk is living_thing. congenital_thing is living_thing. living_thing is tangible_thing. tangible_thing is enduring_thing_localized.