Nonliving parts of an ecosystem such as sunlight, water and air.
Abiotic
A large region with similar climate, plants, and animals.
Biome
A place where freshwater and saltwater mix.
Estuary
A sequence showing how energy moves from one organism to another.
Food chain
Harmful substances introduced into the environment.
Pollution
Living parts of an ecosystem.
Biotic
Land-based environments.
A coastal wetland flooded with saltwater.
Salt marsh
A network of many interconnected food chains.
Food web
A trait that helps an organism survive.
Adaptation
All living and nonliving things interacting in an area.
Ecosystem
Water-based environments.
Aquatic
Small bodies of still freshwater.
Ponds
An organism that makes its own food.
Producer
Niche
All living thing.
Organism
Large flowing bodies of freshwater.
Rivers
An organism that eats other organism.
Consumer
When one organism relies on another.
Dependence
Small flowing bodies of freshwater.
Streams
An organism that breaks down dead matter.
Decomposer
When organisms rely on each other.
Interdependence