Quick Ecosystem Quiz

Which is an abiotic factor that most limits the number of frogs living in a pond? 

• the color of the water 
• the number of predators 
• the temperature of the water 
• the populations of producers 

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Which population would be most affected if there is a decrease in the population of aquatic insects?

• elk
• frog
• moose
• squirrel

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Below is an example of a simple food chain.

Acorn → Squirrel → Fox → Mountain Lion 

What will most likely happen if squirrels are removed from the food chain?

• The fox will eat acorns
• The fox population will decrease
• The trees will produce fewer acorns.
• The mountain lion population will increase

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Abiotic factors are

• The living parts of an environment

• The non-living parts of the environment

• All the organisms that live in an area

• None of the above

Why is a shark a carnivore?

• Because it eats seaweed

• Because it eats sand

• Because it eats dead animals

• Because it eats eats other animals

An organism is

• A living thing

• Anything on earth

• Found only on land

• All the animals on earth

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An organism that makes its own food is called

• Heterotroph

• Producer

• Secondary consumer

• Decomposer

The living parts of an ecosystem

• Biotic factors

• Abiotic factors

• Animals

• Molecules

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What are the Abiotic factors in this image?

• water, sunlight, dirt, air

• birds and plants

• birds, water, dirt

• plants, water

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How are populations different from communities?

• Populations consist of one species; communities consist of many species.

• Populations can contain plants and fungi; communities consist of animals only.

• Populations consist of many species; communities consist of one species.

• Populations consist of animals only; communities can contain plants and fungi.