3.7 components of biodiversity

Question 1

Biodiversity definition

Answer 1

The total variation that exists among living organisms

Question 2

Components of biodiversity

Answer 2

Genetic diversity
Species diversity
Ecosystem diversity

Question 3

Genetic diversity definition

Answer 3

The variety and frequency of different alleles within a population of organisms.

Question 4

Population

Answer 4

All the organisms of one species in an ecosystem.

Question 5

How is genetic diversity lost

Answer 5

By individuals or populations of a species dying out.

Question 6

Disadvantage of losing genetic diversity

Answer 6

Could limit the species ability to adapt to a change in environment, meaning they are more likely to go extinct.

Question 7

Species diversity

Answer 7

The number of different species in an ecosystem and the relative abundance of these species.

Question 8

Components of species diversity

Answer 8

Relative abundance and species richness

Question 9

Species richness

Answer 9

The number of different species in the ecosystem

Question 10

Relative abundance

Answer 10

The size of the population of each species in relation to the whole ecosystem.

Question 11

How does species diversity decrease

Answer 11

By a dominant species being of high abundance, other species must be of lower abundance due to competition for resources.

Question 12

Ecosystem diversity

Answer 12

The variety of different ecosystems within an area.