Biotic vs. Abiotic
Levels of Organization
Ecosystem Interactions
Producers, Consumers, Decomposers
Challenge Round
100

Living things in an ecosystem are called this.

What are biotic factors?

100

One single living organism.


What is an organism?

100

When one animal eats another.

What is predation?

100

Organisms that make their own food.


What are producers?

100

Name ONE biotic and ONE abiotic factor in a desert.

(Answers vary)

200

Sunlight, water, and temperature are examples of this.

What are abiotic factors?

200

A group of the same species living together.

What is a population?

200

When two organisms compete for resources.


What is competition?

200

Animals that eat plants or other animals.

What are consumers?

200

What level is a group of deer in a forest?

What is a population?

300

Is a mushroom biotic or abiotic?

What is biotic?

300

Different populations living together.

What is a community?

300

A relationship where both organisms benefit.

What is mutualism?

300

Organisms that break down dead matter.


What are decomposers?

300

What level includes trees, animals, water, and soil?

What is an ecosystem?

400

Name TWO abiotic factors.


Examples: sunlight, water, air, temperature, soil

400

Living and nonliving things interacting.


What is an ecosystem?

400

A relationship where one benefits and one is harmed.

What is parasitism?

400

A rabbit is this type of consumer.

What is a herbivore?

400

Explain the difference between community and ecosystem.

Community = living only

Ecosystem = living + nonliving

500

True or False: A dead tree is biotic.

What is True?

500

All ecosystems on Earth combined.

What is the biosphere?

500

A relationship where one benefits and the other is not affected.

What is commensalism?

500

A bear that eats plants and animals is this.

What is an omnivore?

500

Why are decomposers important?

They recycle nutrients back into the ecosystem

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