They are breaking down the toxins, I presume.
Predator and Prey relationships would have the most effect on an ecosystem's stability because they keep a limit number on the opposing population (ex. rabbit population can only get so high because wolves keep eating them / wolf population can only be so high because there is't enough rabbit to eat)
C. Law of segregation is the Mendel's law that states that gametes carry one allele for each trait.
Answer:
i think it is the middle one
B