Answer:
D. they're all made up of cells
Answer: It depends on if your only talking about plants if so the answer is coal.
Explanation: The reason being because coal only forms from the compaction of dead plants whereas petroleum forms from compacted plants and animals.
1.formation of glucose, which leaves the chloroplast
2.formation of a stable 3-carbon compound
3.formation of an unstable 6-carbon compound
4.use of ATP to form a high-energy 3-carbon compound