Lecture 3

Question 1

What sources of evidence do we have for evolution

Answer 1

• Geology (fossils)
• Homology
• Biogeography
• Domestication

Question 2

T/F
Younger strata of fossils is found near the bottom

Answer 2

False
young = top
old = bottom

Question 3

Vestigial Structures

Answer 3

features that are inherited from ancestors but have little or no use in the current generation
- reduced in size and function

Question 4

How does homology = proof of evolution

Answer 4

similarities of traits in 2 or more species suggesting a common ancestor
- homologous/analogous
- vestigial structures

Question 5

How does biogeography = proof of evolution

Answer 5

• species that are distrubted overtime, why they are, and what patterns drive them to separation
• geographic changes
• Australia = unique animals bc it is an island

Question 6

How does domestication show proof of evolution

Answer 6

how artifical selection is successful and how humans act as NS to select for traits that they want
- dogs were domesticated from wolves
- artificial selection leading to drastic changes over generations