AQA Biology A Level - Ecology revision
papers 2023 with correct Questions and
ANSWERS
Biodiversity (Correct Answers) the range and variety of genes, species and habitats
within a particular region
Ecological niche (Correct Answers) the precise way in which an organism fits into its
environment. The totality of all factors that effect it
Ecosystem (Correct Answers) all the living and nonliving things in a particular area
Community (Correct Answers) all the living organisms in an ecosystem at a given time
Habitat (Correct Answers) the place where an organism normally lives
Population (Correct Answers) a group of individuals of the same species that occupy
the same habitat at the same time
Species (Correct Answers) a group of similar organisms that can breed to produce
fertile offspring
Species diversity (Correct Answers) the number of different species and the number of
individuals of each species within any one community
Standard deviation (Correct Answers) a measure of the spread of data around the mean
Significant difference (Correct Answers) There is a less than 5% probability the
differences in the results are due to chance
Genetic Diversity (Correct Answers) genetic differences between individuals within a
population
Gene Pool (Correct Answers) The total number of alleles in a particular population at a
specific time
Abiotic factor (Correct Answers) physical or non-living
Biotic factor (Correct Answers) living
papers 2023 with correct Questions and
ANSWERS
Biodiversity (Correct Answers) the range and variety of genes, species and habitats
within a particular region
Ecological niche (Correct Answers) the precise way in which an organism fits into its
environment. The totality of all factors that effect it
Ecosystem (Correct Answers) all the living and nonliving things in a particular area
Community (Correct Answers) all the living organisms in an ecosystem at a given time
Habitat (Correct Answers) the place where an organism normally lives
Population (Correct Answers) a group of individuals of the same species that occupy
the same habitat at the same time
Species (Correct Answers) a group of similar organisms that can breed to produce
fertile offspring
Species diversity (Correct Answers) the number of different species and the number of
individuals of each species within any one community
Standard deviation (Correct Answers) a measure of the spread of data around the mean
Significant difference (Correct Answers) There is a less than 5% probability the
differences in the results are due to chance
Genetic Diversity (Correct Answers) genetic differences between individuals within a
population
Gene Pool (Correct Answers) The total number of alleles in a particular population at a
specific time
Abiotic factor (Correct Answers) physical or non-living
Biotic factor (Correct Answers) living
