Biodiversity (3.4.6)

Question 1

define species diversity

Answer 1

the NUMBER of different species AND INDIVIDUALS within each species in a community

Question 2

define Genetic diversity

Answer 2

the variety of genes amongst all the individuals in a population of one species

Question 3

define ecosystem diversity

Answer 3

the range of different habitats

Question 4

define species richness

Answer 4

the NUMBER of different species in a particular area at a particular time

Question 5

what is the importance of biodiversity

Answer 5

biodiversity can be used to describe a range of habitats, from SMALL LOCAL HABITATS to the entire EARTH
(ecosystems like desert or arctic have low biodiversity due to the abiotic factors being harsh)
- a variety of different organisms can be considered by;genetic, habitat and species diversity

Question 6

how is the index of diversity different to species richness

Answer 6

species richness was just the number of species whereas the index of diversity also takes into account the number of INDIVIDUALS within each species

Question 7

what does the capital N stand for when calculating the Simpsons diversity index

Answer 7

N=the total number of organisms of ALL species

Question 8

what does the little n stand for when using the Simpsons diversity index

Answer 8

n=the total number of organisms within A PARTICULAR species

Question 9

how can you tell if an organism is in the same species

Answer 9

the offspring of the two species produce a fertile offspring