Year 9 Ecology

What is the primary source of energy for most ecosystems?

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Answer explanation

The first trophic level, our producers, all receive their energy from the sun through photosynthesis.

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C

Which of the following is a biotic factor?

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Answer explanation

Biotic factors in an ecosystem are living things.

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C

Which of the following is an example of an abiotic factor?

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Answer explanation

Abiotic factors are non-living things in an ecosystem.

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C

What is the rule which determines the amount of energy that is passed through a food web?

• Tempasentrule

• 10% Rule

• Right Hand Rule

• There is no rule

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C

Arrange these organisms into order of trophic level.

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C

Organise these causes of change to ecosystems.

Groups:

(a) Man Made

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(b) Natural

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B

Match the ocean organism to its category.

• Primary Consumer

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• Apex Predator

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• Producer

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• Tertiary Consumer

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• Secondary Consumer

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B

Match the grassland organism to its category.

• Secondary Consumer

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• Primary Consumer

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• Producer

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• Tertiary Consumer

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• Apex Predator

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B

Match the desert organism to its category.

• Primary Consumer

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• Apex Predator

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• Producer

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• Secondary Consumer

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• Tertiary Consumer

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B

Match the rainforest organism to its category.

• Tertiary Consumer

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• Apex Predator

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• Primary Consumer

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• Producer

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• Secondary Consumer

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B