Food.
Fat serves as an energy source for the body.
yes dead organisms is a nutrient source for fungi!!! ofcourse it is, .... or is it! O_o
its a source of vitamin D.
potassium
nutrient
fat
Sugar.
protein
Vitamin C.
ask ms.blize
water-packed tuna
Fats, Carbohyrates, and Protiens are our main sources.