The population of the organism. Either forcing some away or drawing the ones who can adapt in.
C.) increase the concentration of one of the solutions
<span>surface faulting moves the ground in different directions</span>
Well, there is nothing given to list, but I kinda know because I actually liked biology class.
Advantages include:
Variation in offspring - this is really important to the survival of a species. Variety in DNA allows an offspring child thing being to be able to adapt to new environments and immune system attack and evolve gaining better and better traits for survival.
It also increases the chance of at least some offspring.
