Ecosystems
Flow of energy
Relationships
100

What is ecology?

The study of how living things interact with each other and their environment. 

100

What are producers?

They make food for themselves and other organisms. 

100

What is mutualism?

A symbiotic relationship where both organisms benefit. 

200

What are abiotic factors?

Nonliving such as sunlight and water. 

200

What are consumers? 

They depend on other organisms for food. 

200

What is commensalism? 

Where one organism benefits and the other isn't affected either way. 

300

What are biotic factors?

Living or once living organisms. 

300

What are decomposers?

They break down remains and other waste and release simple inorganic molecules back into the environment. 

300

What is paraitism? 

Where one organism benefits and the other is harmed. 

400

What is an ecosystem?

Abiotic and biotic factors work together in one location where they need a constant input of energy. 

400

What is a food chain? 

A single pathway of energy. 

400

What is prey?

An organism that is captured and is food for predators. Always at the bottom of the food chain. 

500

What is a niche?

A role of species in an ecosystem, such as habitat, nutrition, and activity. 

500

What is a food web?

Multiple pathways within an ecosystem. 

500

What are predators?

Predators are consumers that capture and eat other consumers. Predators limit the prey populations. 
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