Time is now up for the Do Now! Six minute(s) for Do Now Five Day 15. How can species have similar physical features without being closely related? HW or study Four Three Two One INDEP To answer the question: Explain the relationship between the environment and analogous characters Vocab for today: Analogous characters Convergent evolution

Agenda WHOLE: Review of Do Now COOP: Tower building WHOLE: Guided notes WHOLE: Essay analysis INDEP: Essay practice COOP: Grading essays ASSESS: Exit quiz Check-out WHOLE

The Do Now. Let’s review. WHOLE

Your challenge: build a tower WHOLE As a group, build the tallest freestanding tower possible – Freestanding – cannot rely on anything else for support Movement: do not leave your element team’s table You have fifteen minutes

Getting supplies… WHOLE When I say go... The tallest member of your group will come and get: 1.1 newspaper 2.1 meter of masking tape 3.A scoring rubric for you to turn in

Your challenge: build a tower COOP As a group, build the tallest freestanding tower possible – Freestanding – cannot rely on anything else for support Movement: do not leave your element team’s table You have fifteen minutes

And… time! Let’s talk about those towers. WHOLE

A problem… WHOLE 1.Based on their physical features, what pairs belong together on a cladogram? 2.What pairs actually have the more recent common ancestors?

The fix WHOLE Analogous characters are physical characters that evolve through convergent evolution*. * for definition, see D8 notes

The fix WHOLE Convergent evolution means that two distantly related species face similar competitive pressures and adapt by developing structures that perform the same function.

The fix WHOLE Analogous features are different from homologous structures because they perform the same function and are not evidence of a shared ancestor. Therefore, the structure of analogous characters may be different.

Wait – what was that?! WHOLE Homologous structure Same structure, different function, evidence of common ancestor, divergent evolution Analogous structure Different structure, same function, not from common ancestor, convergent evolution

Understanding rubrics WHOLE You would receive one point for each of the following: o Including (1) an introduction with your claim, (2) evidence/justification, (3) a conclusion that (4) explains why the topic is important or relevant o Definition of cladogram o Definition of phylogeny o Explanation of specific information cladograms provide o Description of an example Explain how cladograms show phylogeny. Cladograms are graphic organizers that show phylogeny, or evolutionary history. Cladograms show many species branching off over time and organize species based on their ancestral and derived characters. So a cladogram might have birds branching off after four limbs but before hair or fur. Because they do this, cladograms are imporant.

An exemplar response WHOLE You would receive one point for each of the following: o Including (1) an introduction with your claim, (2) evidence/justification, (3) a conclusion that (4) explains why the topic is important or relevant o Definition of cladogram o Definition of phylogeny o Explanation of specific information cladograms provide o Description of an example Explain how cladograms show phylogeny. Cladograms are graphic organizers that show phylogeny, or evolutionary history. Cladograms provide a hypothesis about how species evolved from a common ancestor over time by studying what features they share, which we call ancestral characters. As you move up a cladogram, or forward in time, you see more species branch off. When a species develops new characters that others do not, we call this a derived character. Because the cladograms tells us about how different traits may have evolved over time, they can tell us how closely species are evolutionarily related, which is an important theme in this unit.

Essay practice WHOLE INDEP When I say go... Complete the essay on your practice sheet based on today’s guided notes Use the rubric to guide your writing! You have ten minutes

Correct your neighbor’s essay WHOLE COOP When I say go... Trade essays with a neighbor – If in a group of three, trade to your right! Read the essay and check the points on the rubric! Give them a final score out of five You have four minutes

Exit quiz ASSESS Answer multiple choice on clickers using the student code in your binder. ASSESS expectations will apply – Any talking or materials on the desk will result in a 0. – It must be silent until every person has turned in the test.

Track your score INDEP Record your screen in the “score one” column of the second row of your unit 2 cover sheet

Exit procedures Line up in back Chairs pushed in (A3 & B7 - on tables) Area cleaned up Nothing left in the room! Get today’s participation score, MissionBucks, and afternoon passes from Mr. Linehan WHOLE