key area 3.8 - components of biodiversity

Question 1

3 components of biodiversity

Answer 1

• genetic diversity
• species diversity
• ecosystem diversity

Question 2

biodiversity

Answer 2

• the total variation that exists among all living things on earth

Question 3

genetic diversity

Answer 3

• the number and frequency of the alleles that exist in a population
• allows species to adapt to changing environments but this can be limited by loss of members of a population

Question 4

species diversity

Answer 4

• consists of the number of different species in an ecosystem (species richness) and the proportion of each species in the ecosystem (relative abundance)

Question 5

ecosystem diversity

Answer 5

• refers to the number of distinct ecosystems within a defined area