Each food chain is a descriptive diagram including a series of arrows, each pointing from one species to another, representing the flow of food energy from one feeding group of organisms to another.

Its bar goes at the bottom of the pyramid. Energy is lost to the ... including humans. The diagram shows how mercury can accumulate in the food chain. In the sea, tiny animals and plants called ...

The USDA has simplified nutrition guidelines with its "MyPlate" campaign. MyPlate replaces the older Food Pyramid. Along with weight-bearing exercises, calcium and vitamin D go together for good ...

Alternatively view the breakdown by calories to measure how the balance of food translates into bodily energy. Visit this site on your desktop browser or tablet device to explore the full ...