Relationships in Ecosystems Review

Large populations need the same amount of resources as small populations.

As populations grow, ecosystems produce more resources in order to support the larger population.

Population sizes are limited by the amount of resources that are available.

Changes in population are independent of the availability of an ecosystem's resources.

an increase in the amount of vegetation (food)

a decrease in the number of owls (predators)

a disease that infects baby mice

an increase in the amount of space available

community

biome

ecosystem

biosphere

roots

grass

birds

sunlight

non-living things in the ecosystem

producers

the place in an ecosystem where an organism lives

population

living things in an ecosystem

nonliving things in an ecosystem

a characteristic that helps an organism survive and reproduce in its environment

squirrels

Hawks and coyotes

Squirrels and hawks

Antelopes and squirrels

Hawks and mountain lions

True

False

One organism benefits greatly and the other is not harmed

One organism benefits while the other is harmed

Close relationship where both organisms benefit

One organism benefits greatly and the other is not harmed

One organism benefits while the other is harmed

Close relationship where both organisms benefit