I think the answer to this is structure C
Answer:
knowing what to do and what not to do. i think.
Change to the landscape from construction. The answer is c because if there is construction, they are probably building something on top of what used to be that ecosystem.
Answer:
the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
NASA did not invent the smoke detector.
