week 5 not in test

Question 1

what are the two types of evolutionary change

Answer 1

anagenesis - micro evolution
cladogenesis - macroevolution

Question 2

how does founder event speciation occur

Answer 2

1. ancestral species
2. small population founded by a few individuals
3. small population becomes genetically isolated from parent species
   OR
4. original population
5. bottlenecking effect
6. surviving population

Question 3

how do you know if speciation has occurred

Answer 3

if genetic isolation occurs then populations again become sympatric - if they can interbreed speciation has not occured

Question 4

define allopatric and sympatric speciation

Answer 4

divergence happens in geographically isolated areas - allopatric
if divergence occurs in the same area - sympatric speciation

Question 5

name 2 types of isolation

Answer 5

geographic or temporal eg valley or types of woodland

Question 6

what are the two types of evolutionary change

Answer 6

anagenesis - micro evolution
cladogenesis - macroevolution