SNC1W Ecology Review

Without decomposers, what would build up on the ground and not return to the soil?

• large rocks

• rain water

• bacteria and other microorganisms

• dead plant and animal matter

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All the living and nonliving things in an area make up a/an

• community.

• ecosystem.

• population.

• environment.

An organism that makes its own food is a/an

• producer.

• consumer.

• predator.

• prey.

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A ________ is all the members of one kind of plant or animal in a community.

• ecosystem

• environment

• population

• community

Two or more overlapping food chains form a/an

• food chain

• food web

• community

• population

Tags

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Without the Sun, which of Earth's organisms could no longer survive?

• producers only

• producers and consumers

• scavengers only

• nearly all organisms

Tags

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How many organisms make up a typical food chain?

• 1 or 2

• 3 to 6

• 10 to 50

• more than 50

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In a diagram of a food web, the arrows show the flow of

• soil

• sunlight

• oxygen

• energy

Tags

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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

Tags

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Which is an abiotic factor that would affect the growth of a population within an ecosystem?

• the availability of water
• the availability of producers
• the type of herbivores present
• the number of carnivores present

Tags

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