[con Brio]

well, seeing how my major is a double, in biology and biochemistry:

to answer #8
8) In terms of calories why do you think seeds(small structures containing youg plants) and high in fat content? Examples are the peanut corn and sunflower seeds from which we get cooking oils. Why are such seeds good sources of food for humans.

answer:

Seeds are high in fat content because they need it. A seed is basically an egg of an unborn organism. If the organism is unborn, how is it going to get its nourishment? The oils inside the seed fuel the seed to grow into a seedling, and then into a well developed plant. Oil in a seed is analogous to the yolk of an egg, or the placenta of a fetus. It's a source of nutrients.

Seeds are good for humans because the fat has more calories per gram. Fat (which is the oil) contains 9 calories per gram, whereas protiens and carbohydrates only contain 4 calories per gram. Gram for gram, fats are more loaded with energy.