What will happen to all organisms if there is no sunlight

Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.

Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto

What are the two functions of the respiratory system