Ecosystems (HSC SSCE Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What term describes all non-living physical and chemical components in an ecosystem?
What term describes all non-living physical and chemical components in an ecosystem?
Abiotic factors
How many vertebrate species are found in the Blue Mountains region?
How many vertebrate species are found in the Blue Mountains region?
186 species
What is the annual rainfall range for desert ecosystems in Australia?
What is the annual rainfall range for desert ecosystems in Australia?
Less than 250 mm
What canopy cover percentage do tropical rainforests typically have?
What canopy cover percentage do tropical rainforests typically have?
70-100%
What characterises the soils of the Australian arid zone?
What characterises the soils of the Australian arid zone?
Ancient and infertile
What key factor determines which organisms survive in estuarine environments?
What key factor determines which organisms survive in estuarine environments?
Salinity level
Which is an abiotic factor affecting aquatic ecosystems?
Which is an abiotic factor affecting aquatic ecosystems?
Dissolved oxygen levels
What happens to vegetation as annual rainfall increases across Australian ecosystems?
What happens to vegetation as annual rainfall increases across Australian ecosystems?
Becomes denser and more diverse
What are ephemeral plants in the arid zone?
What are ephemeral plants in the arid zone?
Plants with short life cycles
Which organisms does low rainfall as a selection pressure favour?
Which organisms does low rainfall as a selection pressure favour?
Drought-resistant plants like saltbushes