1. Today’s Agenda… 3-1 Bellringer: Corrections on yesterday’s bellringer.
Review yesterday’s activity
BrainPop (2nd Period)
Notes on The Role of Genes in Evolution (#4)
Hidden Frogs Activity
Quiz on Monday – Study! 

2. Today’s Targets…
I can explain how and why species adapt to their environment.
I can explain how natural selection leads to diversity.
I understand that biological change occurs as a result of small differences between parents and offspring gradually or over many generations.

3. Genes and Evolution
Study Pack #4

4. The Role of Genes in Evolution
Darwin did not know anything about genes or mutations
Could not explain the variations or how they were passed on
Variations result from mutations in genes or from the combinations of alleles inherited from the parent
Only traits that are controlled by genes are acted upon by natural selection

5. How do new species form?
Geographical isolation can cause the formation of a new species
Separated by a river, volcano, mountain range
Once a group becomes isolated they can no longer mate with the rest of the group

6. How do new species form?
A new species can form when a group of individuals remains separated from the rest of the group long enough to evolve different traits

7. Continental Drift Geographical isolation has occurred on a wide scale
When Pangea split, species became separated and evolved separately