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6 Cards in this Set
- Front
- Back
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What is biomass?
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The amount of living material |
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Why is the biomass at each stage in the food chain less than the stage before? |
Lost through respirtation |
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How can fish stocks be maintained?
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By changing net sizes and introducing fishing quotas |
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How are materials that living organisms remove from the environment eventually returned to the environment?
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or when the organism dies and decays |
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What is the carbon cycle?
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The constant cycling of carbon |
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What happens in the carbon cycle? |
2. The carbon makes carbohydrates, fats and proteins which make up the body of plants and algae 3. the plants and algae respire and release some carbon dioxide back into the atmosphere 4. plants and algae are eaten by animals 5. animals are eaten by other animals 6. some of the carbon becomes fats and proteins which make up their bodies 7. Animals repire 8. organisms dies 9. Detritus feeders and microorganisms feed on their bodies and break down the waste products and dead bodies and cycle the materials as plant nutrients 10. combustion of wood and fossil fuels releases carbon dioxide into the atmosphere
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