LS2.A Quiz

Temperature

Sunlight

Grass

Water

To provide food for all other species

To maintain the structure and balance of an ecosystem

To be the most abundant species in the ecosystem

To be the largest predator in the ecosystem

A lion hunting a zebra

A bee pollinating a flower

A tree absorbing sunlight

A fish swimming in water

They provide additional food resources

They increase biodiversity

They compete with native species for resources

They have no impact on native species

Fungi

Soil

Birds

Insects

One organism benefits while the other is harmed

Both organisms benefit from the relationship

One organism benefits while the other is unaffected

Both organisms are harmed

By being the most numerous species

By preying on all other species

By controlling the population of other species, thus maintaining balance

By being the largest species in the ecosystem

Increased food supply for native species

Decreased competition among native species

Disruption of existing food webs

Stabilization of the ecosystem

In commensalism, both organisms benefit; in parasitism, one benefits and the other is harmed

In commensalism, one organism benefits and the other is unaffected; in parasitism, one benefits and the other is harmed

In commensalism, both organisms are harmed; in parasitism, both benefit

In commensalism, one organism is harmed; in parasitism, both are harmed

A rabbit eating grass

A tree providing shade for a plant

Temperature affecting the growth rate of bacteria

A bird building a nest in a tree