I believe it is option D Sympathetic Nervous System.
Iodine solution is used to test leaves for the presence of starch. You need to: heat a plant leaf in boiling water for 30 seconds (this stops its chemical reactions) heat it in boiling ethanol for a few minutes (this removes most of its colour)
Answer:
turn off the radiator immediately and move the box away from the heat
Explanation:
Can we get a picture? or graph?