U1 - Speciation Flashcards
1
Q
explain speciation
A
the formation of a new species by evolution. occurs as a result of isolation; mutation; natural selection; speciation.
2
Q
what do isolation barriers do
A
prevent gene flow between sub-populations
3
Q
explain allopatric speciation
A
gene flow is between populations is prevented by a geological barrier
4
Q
explain sympatric speciation
A
gene flow is between populations is prevented by an ecological or behavioural barrier
