Biodiversity

Question 1

What is the difference between species richness and species eveness?

Answer 1

species richness= number of species in a habitat
species eveness= all species in a habitat

Question 2

what is phylogeny?

Answer 2

the evolutionary relationship between organisms/species and is the basis of classification

Question 3

outline 3 reasons why it is important to conserve the e.g. lberian lynx. (3)

Answer 3

idea of impact on food chain(s) ;

idea of right to exist / duty of humans to care for other
species / ethical reason / preserving species for
future generations ;
idea of aesthetic reason ;
economic reason / tourism / might provide useful
resource ;

Question 4

suggest 3 reasons why estimates are not likely to be accurate, to estimate the total number of species on earth. (3)

Answer 4

• some species may be difficult to distinguish
• may have become extinct recently
• evolution is ongoing so new species are constantly being formed