selection

Question 1

what is directional selection

Answer 1

selection that favours indivduals that vary ion one direction from the mean of the population - will change the characteristics of the population

Question 2

what is stabilising selection

Answer 2

selection will favour the average individual - preserves the characteristics of the population

Question 3

what is the purpose of courtship behaviour

Answer 3

• recognsie partners of their own species
• identify a mate that is capable of breeding

Question 4

de4fine phylogeny

Answer 4

evolutionary relationships between organisms

Question 5

define species diversity

Answer 5

the number of different species and number of individuals of each species within a community

Question 6

define biodiversity

Answer 6

the variety and number of living organisms in a particular area

Question 7

define species richness

Answer 7

the number of different species in a particular area at a given time

Question 8

define ecosystem diversity

Answer 8

the range of different habitats.