Pyramids of Biomass

• As you move up the food chain is there more or less energy and biomass?

  Less
• As you move up the food chain is there usually more or less organisms?

  Less
• Organisms can go up as you go up the food chain however e.g. 500 fleas can feed on one fox
• What does each bar on a biomass pyramid represent?

  Relative mass of a living material
• One fox would have a big biomass whereas 500 fleas would have a small biomass
• Biomass pyramids are practically always pyramid shaped
• The lowest bar on a biomass pyramid represents what trophic level?

  Trophic level one
• Are biomass pyramids drawn in scale?

  Yes
• Do you have to label each bar of a biomass pyramid?

  Yes