Biomass and Energy Transfer and Decay
- Created by: isabella newsum
- Created on: 16-11-14 11:07
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- Pyramids of Biomass and Energy transfer and Decay
- Constructing pyramids of biomass
- Biomass means the mass of a living material
- Represented in each bar
- Less energy and less biomass every time you move up a trophic level
- Big bar at the bottom is always the producer, next bar the primary consumer, then the secondary consumer etc
- Biomass means the mass of a living material
- Interpreting pyramids of biomass
- Explain what the pyramid shows about the food chain
- Biomass and energy are still decreasing as you go up the levels
- Energy Transfer
- Sun is a source of energy for nearly all life on earth
- Green plants and algae use small % to make food during photosynthesis
- Green plants and algae use small % to make food during photosynthesis
- Respiration supplies all life processes including movement
- Eventually most of energy lost to surroundings as heat
- Some material in plants and animals (bones) don't pass on to the next stage
- Material and energy are also lost from the food chain in the waste materials
- Loss of energy is why we get pyramids of biomass
- Sun is a source of energy for nearly all life on earth
- Decay
- Plants take in carbon, oxygen, hydrogen and nitrogen and turn these into complex compounds- through food chain
- Returned to envrion. as waste products
- Materials decay as they are digested by microorganisms
- Work best in warm, moist conditions with plenty of oxygen- compost bins= ideal conditions
- Important elements are recycled and returned back to the soil, ready to be used by plants again
- Work best in warm, moist conditions with plenty of oxygen- compost bins= ideal conditions
- Materials decay as they are digested by microorganisms
- Returned to envrion. as waste products
- Plants take in carbon, oxygen, hydrogen and nitrogen and turn these into complex compounds- through food chain
- Constructing pyramids of biomass
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