Answer:
Yes because we use our brain to write, read, draw, drive a car, or pretty much anything we do. Even sleeping our brain is working. But at a slower pace. The brain never stops working.
Explanation:
The answer to 2-7 would be -5, but 7-2 would be 5, depends how specific one is trying to be.
Some possible answers could be...
-Analyzing the abiotic factors and biotic factors of the ecosystems compared to other ecosystems not growing the species.