3.7 components of biodiversity

Question 1

Define biodiversity

Answer 1

-total variation that exists among all living things on earth

Question 2

State the 3 components of biodiversity

Answer 2

• genetic diversity
• species diversity
• ecosystem diversity

Question 3

Define genetic diversity

Answer 3

-number and frequency of all alleles within a population

Question 4

What is the effect on genetic diversity if a one population of species dies out

Answer 4

• species may lose some of its genetic diversity

- loss of genetic diversity may limit availability of them to adapt to changing conditions

Question 5

Define species diversity

Answer 5

-the number of different species existing in a given ecosystem (known as species richness) and the proportion of each species in the ecosystem (known as relative abundance

Question 6

Define species richness

Answer 6

-number of different species existing in a given ecosystem

Question 7

Define relative abundance

Answer 7

-proportion of each species in the ecosystem

Question 8

How does a dominant species in a community effect species diversity

Answer 8

-dominant species = lower species diversity

Question 9

Define ecosystem diversity

Answer 9

-number of distinct ecosystems within a defined area