Science Assessment ~ Topics ~ Interdependence in Ecosystems ~ NGSS Link LS2.A-M.1

Organisms, and populations of organisms, are dependent on their environmental interactions both with other living things and with nonliving factors.

Items associated with this NGSS statement in this project (Original Project) and key idea (All organisms, both land-based and …)
Item ID Number	Item Description	Select This Item for My Item Bank
IE029005	Changes in a population in a food web can affect the population of its predator (no specific organisms identified).
IE029006	Changes in a population of organisms in a food web (worms) can affect the population of its predator (robins).
IE031006	Changes in a population in a food web can affect other populations of organisms even if they are not directly connected in a feeding relationship (no specific organisms identified).
IE031007	Changes in a population of organisms in a food web (worms) can affect other populations of organisms (foxes) even if they are not directly connected in a feeding relationship.
IE019014	Changes in a population may affect populations that are not directly connected by a feeding relationship even if they are several steps away in a food web (pond ecosystem).
IE019015	Changes in a population (fish in a pond) may affect populations that are not directly connected by a feeding relationship (insects) even if they are several steps away in a food web.
IE019016	Changes in a population in a food web (large fish) can affect the population of its prey (tadpoles).
IE020004	Changes in a population (fish in a pond) may affect populations that are not directly connected in a feeding relationship (large birds).
IE028005	Changes in a population may affect populations that are not directly connected by a feeding relationship even if they are several steps away and not within the same chain in a food web (no specific organisms identified).
IE028006	Changes in a population (frogs) may affect populations that are not directly connected by a feeding relationship (mice) even if they are several steps away and not within the same chain in a food web.
IE016008	Changes in a population (introduction of a new species) may affect populations that are not directly connected by a feeding relationship (caterpillars) even if they are several steps away in a food web.
IE014004	Changes in a population in a food web (robins) can affect the population of its prey (caterpillars).
IE017005	Changes in a population (introduction of a new organism) may affect populations that are not directly connected by a feeding relationship even if they are several steps away in a food web (woodland ecosystem).
IE017006	Changes in a population may affect populations that are not directly connected by a feeding relationship even if they are several steps away in a food web (woodland ecosystem).
IE034005	Changes in a population (rabbits) may affect populations that are not directly connected by a feeding relationship (crickets) even if they are several steps away and not within the same chain in a food web.
IE012011	Changes in a population in a food web (wolves) can affect populations of other organisms (grass) even if they are not directly connected in a feeding relationship.
IE012012	Changes in a population in a food web (wolves) can affect populations of other organisms (grass) even if they are not directly connected in a feeding relationship (text only, no diagram).
IE025004	Changes in a population may affect populations that are not directly connected by a feeding relationship even if they are several steps away in a food web (woodland ecosystem).
IE025005	Changes in a population may affect populations that are not directly connected by a feeding relationship even if they are several steps away in a food web (no specific organisms identified).
IE026004	Changes in a population may affect populations that are not directly connected by a feeding relationship even if they are several steps away in a food web (ocean ecosystem).
IE026005	Changes in a population may affect populations that are not directly connected by a feeding relationship even if they are several steps away in a food web (no specific organisms indicated).
IE027004	Changes in a population in a food web can affect the populations of both its predator and its prey (no specific organisms identified).
IE027005	Changes in a population in a food web (grasshoppers) can affect the populations of both its predator (frogs) and its prey (grass).
IE073004	Changes in a population in a food web can affect the population of its prey (no specific organisms identified).
IE032004	Changes in a population in a food web can affect populations of other organisms even if they are not directly connected in a feeding relationship (no specific organisms identified).
IE032005	Changes in the number of worms in an area can affect the number of foxes in that area even though foxes do not depend directly on worms for food.

Items associated with this NGSS statement in this project (Original Project) and other key ideas
IE081002	The size of populations of squirrels can increase when there is an increase in the food available and a decrease in the number of predators.
IE081003	The size of populations of robins can increase when there is an increase in the food available and a decrease in the number of its predators.
IE084001	Both the number of predators and the availability of resources can limit the growth of a population of organisms.
IE085001	Both disease and the number of predators can limit population growth.
IE086001	Disease and the availability of resources can limit population growth.
IE045003	The size of a population of organisms (deer) can increase when its predators are removed from an area because the organisms can live longer and have more offspring that also live longer (includes a food web diagram).
IE042006	The size of a population of organisms can increase when its predators are removed from an area because the organisms live longer and have more offspring that also live longer (includes a food web diagram).
IE042007	The size of a population of organisms (deer) can increase when its predators are removed from an area because the deer can live longer and have more offspring that also live longer (text only, no food web diagram).