IB Biology Topic 4 Cram sheets

This page contains our IB Biology cram sheets for topic 4. By reviewing each one of these cram sheets, you will fully cover the content for IB Biology 'Ecosystems'.

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Subtopic A4.1

Evolution & speciation

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Subtopic A4.1

Further speciation

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Subtopic A4.2

Conservation of biodiversity

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Subtopic B4.1

Adaptations

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Subtopic B4.2

Ecological niches

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Subtopic C4.1

Populations & communities

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Subtopic C4.2

Energy & matter transfer

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Subtopic D4.1

Natural selection

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Subtopic D4.1

Further natural selection

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Subtopic D4.2

Stability & change

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Subtopic D4.2

Ecological stability

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Subtopic D4.3

Climate changes

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Subtopic D4.3

Further climate change

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You have now covered all of our topic 4 cram sheets for IB biology.

Now that you have completed these IB biology topic 4 cram sheets, dive into our topic 4 topic tests for the IB biology course.

IB biology topic 4 topic tests

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