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| Description: 90% of energy is lost every time energy moves from one trophic level to the next The lower on the food chain from which we take our food sources, the more people the Earth can support. Land and water are needed to raise food for livestock. Producing eggs and chicken meat requires the least space and water; beef requires the most. Picture Stats: Views: 288 Filesize: 44.18kB Height: 827 Width: 581 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=35755 |