Biodiversity - exam practice

opportunistic

random

stratified

systematic

maintaining the 200 different animal species

maintaining the area as a tourist destination to support local businesses

preventing the disappearance of the coastal landscape

protecting the sparrowhawk, which is a keystone species

computer modelling can be used to identify useful medicinal compounds

genetically modified bacteria can be used to synthesise medicines

many pathogenic bacteria have become immune to antibiotics

microorganisms are an important source of new medicines

high plant biodiversity decreases the animal biodiversity in the rainforest

high plant biodiversity increases the organic matter in rainforest soils

high plant biodiversity supports drug discovery and development

high plant biodiversity protects the ecosystem from environmental changes

the number of species in an area

the relative abundance of each species in an area

the relative number of individuals of a species in an area

the spread of species over an area

it helps maintain ecosystem functions and services

it enhances the aesthetic value of the environment

it ensures a constant supply of resources for human use

it allows for greater exploitation of natural resources

expanding farmland into natural habitat

increasing the use of chemical fertilisers

focusing solely on monoculture farming

maintaining hedgerows and other natural habitats

lower species diversity increases community resilience

higher species diversity generally enhances community resilience

species diversity has no impact on community resilience

community resilience is only affected by the dominant species

it is easier to calculate

it considers only the dominant species

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

it requires less fieldwork to obtain

species richness

genetic diversity within a species

the number of individuals in the most populous species

the range of different habitats

low environmental change

low number of species

high variety and abundance of species

that the habitat is man-made