Biodiversity within a Community (AQA A-Level Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What does biodiversity describe?
What does biodiversity describe?
Variety of life in an area
What does genetic diversity represent?
What does genetic diversity represent?
Range of genes/alleles in a population
Why is species diversity more informative than species richness alone?
Why is species diversity more informative than species richness alone?
Accounts for number & relative abundance
Two areas have 25 species. One is 95% wheat, one has equal proportions. Which is more diverse?
Two areas have 25 species. One is 95% wheat, one has equal proportions. Which is more diverse?
Equal proportions area
In the diversity index formula , what does represent?
In the diversity index formula , what does represent?
Total organisms of all species
What does a higher diversity index value indicate?
What does a higher diversity index value indicate?
Greater species diversity
What does ecosystem stability refer to?
What does ecosystem stability refer to?
Maintaining structure & function
Why do higher species diversity indices generally indicate greater ecological stability?
Why do higher species diversity indices generally indicate greater ecological stability?
Varied tolerances & compensation
Why do hot deserts and arctic tundra typically show low species diversity?
Why do hot deserts and arctic tundra typically show low species diversity?
Only adapted species survive extremes
How do low diversity communities respond to environmental change?
How do low diversity communities respond to environmental change?
Dramatic fluctuations