I believe it is D all of the above
<span>Domains Bacteria and Archaea </span>
I think the answer your looking 4 is B
HOPE THIS HELPS
#Optimist
Well, if the big fish are predators, then more food for them and their population would increase greatly. If the big fish and small fish have the same type of food, then that means that the big fish, hypothetically, would have millions of new contenders for their food source. That means that it's very likely that many of those big fish would die out.