Speciation Flashcards
1
Q
What is a species
A
a group that can interbreed under natural conditions
2
Q
Speciation
A
The rise of 2 or more species from a common ancestor is called speciation
3
Q
When can speciation occur
A
When a population becomes isolated
4
Q
2 types of speciation
A
- Allopatric Speciation - when a population becomes geographically isolated from one another
- Sympathetic Speciation - when a population becomes reproductively isolated not geographically
5
Q
3 types of Isolation
A
Habitat isolation- populations can occupy different niches of the same habitat, they do not encounter each other to reproduce
Geographic isolation- populations are separated by physical barriers that divide a population into groups they do not encounter one another to reproduce
Reproductive isolation - inability of organisms to reproduce due to physical or behavour barrier.