Chapter 21 - The Evidence for Evolution Flashcards
1
Q
Evidence of Evolutionary Change by Natural Selection
A
Darwin’s Finches
Industrial Melanism
2
Q
Artificial Selection
A
- Domestication of plants and animals - modern day agriculture
- Man can selectively breed plants and animals to exhibit certain characteristics
3
Q
The Fossil Record
A
- The fossil record is the most direct evidence of evolution
* Fossils document evolutionary transition
4
Q
Relative dating
A
position - position of rocks
5
Q
Absolute dating
A
isotopes - radioactive isotopes with longer half life
6
Q
Anatomical Record
A
- Homology - similar origin, different function
- Embryonic Development
- Vestigial structures - structures that serves no purpose, no use
7
Q
Molecular Record
A
The more closely related organisms are, the more DNA they have in common - gene sequences
8
Q
Convergent Evolution and Biogeography
A
Animals evolving under similar conditions will exhibit similar traits - nature is selecting for similar traits, biogeography - geographical distribution of plants and animals