Trick question. Bacteria do not have cell walls. They barely have cell membranes. The second blank might be either chemosynthetic (break down chemicals for food) or photosynthetic (generate food from sunlight).
Answer:
the process used by green plants to collect natural sunlight in order to produce/create food
Explanation:
Reduce amount of time you take showers and use the bathroom, as well as stop leaks
It breaks down lactose into the galactose and glucose. So the answer here is C.