Science Assessment ~ Topics ~ Interdependence in Ecosystems ~ Misconception IEM029

A change in the size of a prey population has no effect on its predator population (Griffiths & Grant, 1985).

Items that test for misconception IEM029 in this project (Original Project) and key idea (All organisms, both land-based and …)
Item ID Number	Item Description	How Often the Misconception was Chosen
IE027004	Changes in a population in a food web can affect the populations of both its predator and its prey (no specific organisms identified).	13%
IE029005	Changes in a population in a food web can affect the population of its predator (no specific organisms identified).	10%
IE027005	Changes in a population in a food web (grasshoppers) can affect the populations of both its predator (frogs) and its prey (grass).	8%
IE029006	Changes in a population of organisms in a food web (worms) can affect the population of its predator (robins).	7%