Which option correctly lists some abiotic features of an ecosystem?
Mineral ions, light intensity, temperature
Competition, predation
pH, producers, mineral ions
Wind speed, decomposition, mineral ions
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Syllabus Edition
First teaching 2023
First exams 2025
Which option correctly lists some abiotic features of an ecosystem?
Mineral ions, light intensity, temperature
Competition, predation
pH, producers, mineral ions
Wind speed, decomposition, mineral ions
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Which of the statements about the term habitat is/are correct?
I and II only
II only
II and III only
I, II and III
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Which of the statements about biomes is correct?
Biome distribution is affected primarily by biotic factors.
For any given temperature and rainfall pattern there are a range of ecosystem types that can develop.
A tropical rainforest biome will have high annual rainfall and low levels of biodiversity.
Average temperatures and rainfall patterns are significant factors in determining the development of a biome.
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Which of the following is a hazard to consider in a risk assessment when measuring abiotic factors in a natural environment?
Uneven ground.
Slipping on wet rock.
Cutting oneself on a sharp rock.
Breaking an ankle by falling over.
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How could levels of dissolved oxygen in a pond be measured?
pH indicator
Turbidity meter
Electronic sensor
Clinometer
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Which of the following statements about adaptations to abiotic factors is correct?
Some grasses are able to release chemicals that attract the predators of insect herbivore species.
Some grasses are adapted to increase the water vapour concentration gradient between their leaves and the surrounding air.
Mangroves are adapted to survive in an environment with limited fresh water availability.
Mangroves deal with low oxygen availability by absorbing oxygen from the atmosphere via their stomata.
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Which row correctly describes an example of an adaptation for survival in the given biome?
 | Biome | Adaptation |
A. | Tropical forest | Thick waxy cuticles on leaves |
B. | Temperate forest | Nocturnal behaviour |
C. | Taiga | Wide buttress roots |
D. | Hot desert | The ability to extract water from food |
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