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100

All living and nonliving things together in an environment. 

What is an Ecosystem? 

100

A single organism in an environment. 

What is a species? 

100

A model that shows how the food chains in an ecosystem are linked together. 

What is a food web? 

200

Nonliving things in an environment. 

What are Abiotic Factors? 

200

Living things in an environment. 

What are Biotic Factors? 

200

An organism that eats only meat.

What is a carnivore? 

300

All members of a single species in an area at a given time. 

What is a population? 

300

All the populations of organisms living together in an environment. 

What is a community? 

300

An organism that breaks down dead plants and animals. 

What is a decomposer? 

400

An organism that eats only plants. 

What is a herbivore? 

400

An organism that eats meat and plants. 

What is an omnivore? 

400

An organism that must eat to get energy. 

What is a consumer? 

500

An organism that uses energy of the sunlight to make its own food. 

What is a producer? 

500

The path that energy and nutrients follow in an ecosystem. 

What is a food chain? 

500

Consumers that eat the secondary consumers.

What are tertiary consumers?