decreased primary consumer
A, because plant cells do have membrane-bound nuclei. they have chloroplasts, so that isn't it. Plants don't use oxygen for photosynthesis, but carbon dioxide. The plant walls are made up of cellulose,, not lipids. It must be A.
Isobutanol is what can be produced by Cyanobacteria.
Answer:
photosynthesis is the way b plants get their energy
Explanation: