Changes in an Ecosystem

In a pond ecosystem, what would happen to frogs if the insect population decreased?

• There would be more frogs in the pond
• There would be more insects in the pond
• There would be less frogs in the pond
• More fish would move to the pond

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What non living things determines the kinds of organisms that live in ecosystems?

• Sun and producers
• Water and air
• Air and consumers
• Water and decomposers

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Water is an example of...

• Biotic Factor
• Abiotic Factor

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All living things are biotic

• True 
• False

How does too much fishing in an area affect its ecosystem?

• The fish will lay many more eggs to replace fish caught
• organisms that eat fish could become endangered due to starvation
• organisms that eat the fish will become endangered
• people could eat too many fish and become ill

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What would most likely happen if an ecosystem no longer received sunlight?

• The number of herbivores would increase
• The number of plants would increase
• all organisms would adapt
• All living organisms would eventually die

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Humans are part of the ecosystem and therefore impact it.  Which of the following events in an ecosystem may produce a negative effect?

• preventing deer from depleting food resources
• restoring a natural habitat
• wildlife rangers minimizing disturbances
• a lumber company clearing a forest

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Field mice eat corn. Which would most likely happen if the field mouse population grew?

• There would be more corn to feed the field mice.
• There would be less corn due to the mice eating it.
• The habitat would get overpopulated because the mice woudl eat too much.

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