Biodiversity - Unit 3 - Parts 7 & 8

Question 1

Components of biodiversity are __________?

Answer 1

• genetic diversity
• species diversity and
• ecosystem diversity.

Question 2

Genetic diversity is …..?

Answer 2

the number and frequency of all the alleles within a population.

Question 3

Species diversity comprises …?

Answer 3

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

Question 4

Ecosystem diversity refers to …?

Answer 4

the number of distinct ecosystems within a defined area.

Question 5

The bottleneck effect can lead to a reduction in genetic ___________ in a population

Answer 5

diversity

Question 6

If a habitat has become fragmented, isolated fragments can be linked with __________ ____________ ?

Answer 6

habitat corridors

Question 7

A smaller, more remote island will have ______ diversity among its species compared to a larger island that is closer to the mainland.

Answer 7

lower

Question 8

Naturalised species that spread rapidly and eliminate native species are called _____________ __________.

Answer 8

invasive species