Agenda
- Welcome
- Brief description of Living Earth
- Final vignette Marine Mammal Evolution (CA Science Framework 3-Course p.843 )
- Phenomena
- Pictures of Marine mammals (cards on your table)
- Group these pictures
- Survey I (questions below)
- How many groups do you have?
- What patterns do you notice?
- What questions do these pictures raise?
- Graph of fossil data
- (Get Oriented: Fossil card sort) .
- Step 1: Record the 'events' in your data graph
- Step 2: How do your events compare with events from other types of marine mammals?
- Step 3: Come up with a list of questions you have when looking at the combined data.
- Step 4: Unlock a data set and see what new questions you have.
- Can we support or refute these claims
- Claim 1: Branches evolved from a common ancestor
- Claim1a: Radiated out at the same time in response to the same stresses
- Claim 1b: Evolved from one ancestor then branched into ?? groups
- Claim 2: Branches evolved independently
- Claim 2a: Evolved at the same time in response to same environmental stresses
- Claim 2b: Evolved independently and randomly
- Lets look at DNA/protein evidence
- Cytochrome C
- Table
- Fill in table with differences between sequences
- For quick gene tree
- Group together organisms with least number of changes first
- Then add the groups that are at the next level
- Finally connect them all
- Build a gene tree on your poster paper
- Divide paper in 4
- Sketch out gene tree in top left corner 1/4 of paper and paste on organisms
- Now lets look at Earth Science connections
- Graphs-referring back to graphs above.
- Extensions
- Which claim can you support and which one can you refute?
- Bullet point your evidence on the bottom half of your poster
- NGSS
- Survey II on 3-dimensions of NGSS
- Closing-We would like to get to know you and what you thought