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NATIONAL 5 BIOLOGY - LIFE ON EARTH EXAM 2025 QUESTIONS AND ANSWERS

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Biodiversity - ANS the variety of organisms within an ecosystem. abiotic factor - ANS Non-living factor which has an impact on biodiversity e.g. pH, light intensity etc. biotic factor - ANS Living factor which has an impact on biodiversity e.g. competition, predation etc. deforestation - ANS clearing forests to make way for building, farming or to get natural resources. Decreases biodiversity. distribution - ANS Where organisms are found -- can be impacted by abiotic and biotic factors. pH - ANS ABIOTIC FACTOR: measure of acidity or alkalinity. light intensity - ANS ABIOTIC FACTOR: how much light an area recieves. moisture level

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NATIONAL 5 BIOLOGY
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Uploaded on
June 16, 2025
Number of pages
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Written in
2024/2025
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Exam (elaborations)
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Questions & answers

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  • national 5 biology life on earth exam 2025 quest

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NATIONAL 5 BIOLOGY - LIFE ON
EARTH EXAM 2025 QUESTIONS AND
ANSWERS



Biodiversity - ANS the variety of organisms within an ecosystem.



abiotic factor - ANS Non-living factor which has an impact on biodiversity e.g. pH, light
intensity etc.



biotic factor - ANS Living factor which has an impact on biodiversity e.g. competition,
predation etc.



deforestation - ANS clearing forests to make way for building, farming or to get natural
resources. Decreases biodiversity.



distribution - ANS Where organisms are found -- can be impacted by abiotic and biotic
factors.



pH - ANS ABIOTIC FACTOR: measure of acidity or alkalinity.



light intensity - ANS ABIOTIC FACTOR: how much light an area recieves.



moisture level - ANS ABIOTIC FACTOR: how much moisture is present in an area.



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