Fat contains twice as many calories per unit weight as carbohydrates does, so fat is an efficient way for animals, who must move about, to store energy. Compare the way fat and carbohydrates interact...
Many birds must store large amount of energy to power flight during migration. Which type of organic molecule would be the most advantageous for energy?why?
Do you remember the nuclear accident at Chernobyle in 1986? A scientist suspects that the food in a nearby ecosystem may have been contaminated with radioactive nitrogen over a period of months. Which...
