Question 1

A student is investigating species richness of plants along a sand dune from the sea edge moving inland.

They are testing the hypothesis that ‘species richness increases with distance from the sea’.

Which sampling method would the student use?

  A  

opportunistic

  B  

random

  C  

stratified

  D  

systematic

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Question 2

The Dawlish Warren is a conservation area in the UK.

What is an aesthetic reason for maintaining biodiversity in Dawlish Warren?

  A  

maintaining the 200 different animal species

  B  

maintaining the area as a tourist destination to support local businesses


  C  

preventing the disappearance of the coastal landscape

  D  

protecting the sparrowhawk, which is a keystone species

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Question 3

Biodiversity is important for the development of new medicines.

Which statement about the development of new medicines is not correct?

  A  

computer modelling can be used to identify useful medicinal compounds

  B  

genetically modified bacteria can be used to synthesise medicines

  C  

many pathogenic bacteria have become immune to antibiotics

  D  

microorganisms are an important source of new medicines

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Question 4

Tropical rainforests have a very high biodiversity of plant species.

What is an economic benefit of high biodiversity?

  A  

high plant biodiversity decreases the animal biodiversity in the rainforest


  B  

high plant biodiversity increases the organic matter in rainforest soils

  C  

high plant biodiversity supports drug discovery and development

  D  

high plant biodiversity protects the ecosystem from environmental changes

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Question 5

Which statement best defines the term species evenness?

  A  

the number of species in an area


  B  

the relative abundance of each species in an area

  C  

the relative number of individuals of a species in an area

  D  

the spread of species over an area

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Question 6

What best explains why conservation is important for biodiversity?

  A  

it helps maintain ecosystem functions and services

  B  

it enhances the aesthetic value of the environment

  C  

it ensures a constant supply of resources for human use

  D  

it allows for greater exploitation of natural resources

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Question 7

What is one practice that can help to conserve species diversity in agricultural ecosystems?

  A  

expanding farmland into natural habitat

  B  

increasing the use of chemical fertilisers

  C  

focusing solely on monoculture farming

  D  

maintaining hedgerows and other natural habitats

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Question 8

What best describes the relationship between species diversity and community resilience to environmental changes?

  A  

lower species diversity increases community resilience

  B  

higher species diversity generally enhances community resilience

  C  

species diversity has no impact on community resilience

  D  

community resilience is only affected by the dominant species

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Question 9

Why is the index of diversity considered a more informative measure than species richness?

  A  

it is easier to calculate

  B  

it considers only the dominant species

  C  

it accounts for both species number and the distribution of individuals among these species

  D  

it requires less fieldwork to obtain

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Question 10

Which factor contributes to ecosystem diversity?

  A  

species richness

  B  

genetic diversity within a species

  C  

the number of individuals in the most populous species

  D  

the range of different habitats

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Question 11

What does a high index of diversity in a habitat indicate?

  A  

low environmental change

  B  

low number of species

  C  

high variety and abundance of species

  D  

that the habitat is man-made

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