1.4.3: Live Lesson - Ecosystems

An ecosystem relies on both its living and nonliving parts to continue thriving.

Once an ecosystem is established, nothing can impact it.

Organisms do not have specific needs that must be met.

Animals and plants can survive independently from the surrounding environment.

A lion is hunting a zebra.

Rain is falling into a pond.

An earthworm is moving through the soil.

Sunlight is heating up a rock.

is constantly being recycled into one form or another

causes global warming

is not used for many functions in the environment

is constantly being used up through the atmosphere

Abiotic factors in an ecosystem never change.

Biotic factors are living, and abiotic factors are nonliving.

Only biotic factors are part of an ecosystem.

Abiotic factors do not affect abiotic factors.