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Food Webs

QuestionAnswer
Producers are also called this autotrophs
Producers have this name because they do what? Produce their own food
What is a producer? An organism that makes its own food
What is photosynthesis? A process by which organisms produce food using sunlight, CO2 and water
What is a consumer? An organism that must consume other organisms for nutrients.
Consumers are also called this heterotrophs
What is an herbivore? an organism that only eats plants (producers)
What is an omnivore? An organism that eats both consumers and producers
What is a carnivore? An organism that eats only consumers (meat)
What is a decomposer? Organisms that break down waste and the remains of dead plants and animals.
What 2 important jobs do decomposers have? Break down dead organisms and put nutrients back into soil
What is a food chain? Single energy path through the ecosystem
What is a food web? Interacting food chains that show the flow of energy in an ecosystem.
Define trophic levels An organism's position in a food chain, classified by its eating behavior
Define energy transfer Transfer of energy from the sun through the different trophic levels.
Where is the most energy available on the energy pyramid? at the bottom
What is a third level consumer called? Tertiary consumer
What is a fourth level consumer called? Quaternary consumer
How much energy moves from one trophic level to the next level? 10%
Where does the other 90% of energy go that is lost from one trophic level to the next? The animal uses it for daily body processes to make heat
Can organisms be in more than one trophic level Yes because they may be part of more than one food chain
Primary consumers are always... herbivores
What is an apex predator? An animal at the top of the food chain who does not have any natural predators
Created by: jsheahan
Popular Ecology sets

 

 



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