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Ecology/ecosystems (Food chains (Producer (Start of food chain and can'…

- - - - when one organism benefits and the other is negatively affected eg. Shark eating a seal
    - - One organism is negatively affected and one isn't affected at all eg.
    - - when there are numerous species all competing to get one food source eg. vultures, hyenas and lions all trying to get a dead boar
  - - - when both organisms benefit in a relationship eg. oxpecker and zebra
    - - when one organism benefits over a long period of time and the other dies eg. tape worm and dog
    - - When one organism benefits and the other is unaffected eg. barnacles and whales
- - - - Apply rule of ten
        
        10% of energy available to the consumer growth & reproduction
        
        90% loss
        
        Metabolic process
        
        waste production
        
        Excretion
        
        Heat production
  - - - Importance of decomposers
        
        fungi
        
        detrivores
        
        bacteria