Evolution

Question 1

What is divergent evolution?

Answer 1

When 2 or more species have a common ancestor

Question 2

What is a geographical barrier? Give two examples

Answer 2

A barrier between populations that is geographical
EG = mountain
= ocean

Question 3

When is an organism defined as a different ‘species’?

Answer 3

When two organisms are so different that they can’t produce fertile offspring

Question 4

What is adaptive evolution? Provide an example

Answer 4

When the divergent evolution of one species = formation of many species adapted to certain environments
EG the finches of Galapagos island

Question 5

What is convergent evolution?

Answer 5

Similar selection factors in environment = similarities between different species
Opposite to divergent

Question 6

What is extinction?

Answer 6

Loss or disappearance of species on earth

Question 7

What is co-evolution?

Answer 7

Evolved in response to another organism

Question 8

Who thought of the theory of evolution?

Answer 8

Charles Darwin

Question 9

What is Charles Darwin’s theory?

Answer 9

Through billions of years, species of all living things, evolved from a common ancestor
EG man descended from apes

Question 10

List five different types of evolution

Answer 10

1. Divergent
2. Adaptive
3. Convergent
4. Extinction
5. Co-evolution