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Nat5 life on earth

Nat5 Food chains

QuestionAnswer
What do food chains show? the DIRECTION of energy flow
What percentage of energy is passed on at each stage of a food chain? 10%
How is energy lost at each stage of a food chain? heat and movement and undigested material
What do all food chains start with? A producer
What are producers? Organisms that can make their own food from the sun by photosynthesis (green plants)
What are consumers? Organisms that get their energy by eating other organisms (animals)
What do primary consumers eat? They eat producers
What do secondary consumers eat? Primary consumers
What are herbivores? Animals that eat only plants
What are carnivores? Animals that eat only meat (other animals)
What are omnivores? Animals that eat both plants and animals
What are predators? Animals that hunt other animals (prey)
What is prey? Animals that are being hunted by predators
As predators increase prey will ......... the prey decreases
Created by: dr.prorocic
 

 



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