How are members of Domain Eukarya different from members of Domain Bacteria? Domain Eukarya are less complex

Domain Eukarya are usually single-celled

Domain Eukarya have cells with a nucleus.

Domain Eukarya are all producers.

GIVE EXPLANATION THEN I WILL GIVE U BRAINLIEST

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.