A beneficial trait that an organism expresses during its lifetime will only cause its species to become better adapted and increase the species’ reproductive success if - F. 
the trait decreases the number of the genes in the body cells.
G. 
the trait results from isolation of the organism from the rest of the population.
 
H. 
the trait causes a change in the organism's environment.
J. 
the trait is carried in the genetic code of the organism.