4. All of the organisms in a typical ecosystem are interdependent, helping to maintain the equilibrium of the ecosystem and sustaining each other. What process can bacteria perform that is not possible for the
other members of a typical ecosystem?

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.