Answer:
MARK THE IMPORTANT THINGS.
FOCUS ON IT.
TAKE VERY SMALL BREAKS
UNDERSTAND IT.
REWARD YOUR SELF
It is d. If it was adaptation, the organism would have stayed in order to adapt. The species moved in order to not go extinct. It can not be speciation, because a new species was not made. It is stimulus. It experienced too much heat, so it left.
Plant cells? maybe? i learned this last year
The <span>companion cell i belive</span>