D because if the species was to be removed from an ecosystem, everything that needed that species as food, or the species ould have to adapt to the foods available in the new ecosystem they live in. Hope I helped, and let me know if you are still not 100% sure about the answer, and I'll try to clarify what I said.
Lactic acid formation occurs in B) The yeast cell.
the answer is B :) youre welcome
Because their jobs required them to set all day.
