I would say C.nervous system because that pretty much defines all of the answer choices.
The energy before and after a process must be the same.
Inference is d. An observation is something you sense through taste,touch,smell, hear, and see
Answer:
did you already get the answer or you still need help
The answer is. Soils play an important role in all of our natural ecological cycles—carbon, nitrogen, oxygen, water and nutrient.A handful of soil can contain billions of different organisms that play a critical role in soil quality to support plant growth.
