Evidence of EvolutionEvidence of Evolution

CH 7 SEC 2CH 7 SEC 2

GOAL/PURPOSEGOAL/PURPOSE

STUDENTS LEARNED THE THEORY STUDENTS LEARNED THE THEORY OF EVOLUTION. NOW THEY WILL OF EVOLUTION. NOW THEY WILL LEARN ABOUT THE EVIDENCE LEARN ABOUT THE EVIDENCE THAT’S SUPPORTS THE THEORY.THAT’S SUPPORTS THE THEORY.

FORMS OFFORMS OF EVIDENCE EVIDENCE FOR FOR EVOLUTIONEVOLUTION

SIMILAR BODY STRUCTURES, SIMILAR BODY STRUCTURES, PATTERNS OF EARLY PATTERNS OF EARLY

DEVELOPMENT DEVELOPMENT MOLECULAR STRUCTUREMOLECULAR STRUCTURE AND FOSSILS ALL PROVIDE AND FOSSILS ALL PROVIDE

EVIDENCE THAT ORGANISMS HAVE EVIDENCE THAT ORGANISMS HAVE CHANGED OVER TIME.CHANGED OVER TIME.

SHREWSHREW

EVIDENCE CONT’DEVIDENCE CONT’D

COMPARATIVE ANATOMY-COMPARATIVE ANATOMY- IS IS THE COMPARISON OF THE THE COMPARISON OF THE STRUCTURES OF DIFFERENT STRUCTURES OF DIFFERENT ORGANISMS. (SEE PREVIOUS SLIDE)ORGANISMS. (SEE PREVIOUS SLIDE)

KEYKEY- FISHES, AMPHIBIANS, REPTILES, - FISHES, AMPHIBIANS, REPTILES, BIRDS AND MAMMALS ALL HAVE BIRDS AND MAMMALS ALL HAVE SIMILAR ANATOMY- AN INTERNAL SIMILAR ANATOMY- AN INTERNAL SKELETON WITH A BACKBONESKELETON WITH A BACKBONE

KEYKEY- SIMILARITIES IN EARLY - SIMILARITIES IN EARLY DEVELOPMENT AND IN DNA PROTEINS DEVELOPMENT AND IN DNA PROTEINS ARE ALSO EVIDENCE OF EVOLUTIONARE ALSO EVIDENCE OF EVOLUTION

FOSSILSFOSSILS

KEYKEY- FOSSILS FORM WHEN ORGANISMS DIE - FOSSILS FORM WHEN ORGANISMS DIE AND BECOME BURIED IN SEDIMENTS.AND BECOME BURIED IN SEDIMENTS.

KEYKEY- FOSSIL EVIDENCE SUPPORTS THE - FOSSIL EVIDENCE SUPPORTS THE THEORY OF EVOLUTIONTHEORY OF EVOLUTION

DIFFERENT TYPES OF FOSSILSDIFFERENT TYPES OF FOSSILS 1. MOLDS AND CAST- MOST COMMON1. MOLDS AND CAST- MOST COMMON 2. PETRIFIED FOSSILS- PETRIFIED FOREST2. PETRIFIED FOSSILS- PETRIFIED FOREST 3. TRACE FOSSILS- FOOTPRINT3. TRACE FOSSILS- FOOTPRINT 4. PRESERVED REMAINS- TAR PITS4. PRESERVED REMAINS- TAR PITS

PRESERVED REMAINSPRESERVED REMAINS

• http://www.brainpop.com/science/diversityoflife/fossils/

http://www.youtube.com/watch?http://www.youtube.com/watch?v=ybhSDTNhDWgv=ybhSDTNhDWg

LEARNING FROM LEARNING FROM FOSSILSFOSSILS PALEONTOLOGISTPALEONTOLOGIST- IS A SCIENTIST - IS A SCIENTIST

THAT STUDIES FOSSILSTHAT STUDIES FOSSILS THE FOSSIL RECORDTHE FOSSIL RECORD - -

PROVIDES EVIDENCE ABOUT THE PROVIDES EVIDENCE ABOUT THE HISTORY OF LIFE AND PAST HISTORY OF LIFE AND PAST ENVIRONMENTS ON EARTH.ENVIRONMENTS ON EARTH.

KEYKEY- SCIENTIST USE FOSSILS TO STUDY - SCIENTIST USE FOSSILS TO STUDY THE RATE AT WHICH EVOLUTION HAS THE RATE AT WHICH EVOLUTION HAS OCCURREDOCCURRED

Theories on how Theories on how rapidly species changerapidly species change GRADUALISMGRADUALISM- PROPOSES THAT - PROPOSES THAT

EVOLUTION OCCURS SLOWLY BUT STEADILY EVOLUTION OCCURS SLOWLY BUT STEADILY OVER LONG PERIODS OF TIME. (DARWIN OVER LONG PERIODS OF TIME. (DARWIN BELIEVED THIS)BELIEVED THIS)

PUNCTUATED EQUILIBRIA-PUNCTUATED EQUILIBRIA- SPECIES SPECIES EVOLVE QUICKLY DURING RELATIVELY SHORT EVOLVE QUICKLY DURING RELATIVELY SHORT PERIODS OF TIME . SEPARATED BY LONG PERIODS OF TIME . SEPARATED BY LONG PERIODS OF LITTLE OR NO CHANGEPERIODS OF LITTLE OR NO CHANGE

P.E.P.E. ACCOUNTS FOR GAPS IN THE FOSSIL ACCOUNTS FOR GAPS IN THE FOSSIL RECORDRECORD

CONT’DCONT’D

KEYKEY- TODAY MOST SCIENTIST - TODAY MOST SCIENTIST THINK THAT EVOLUTION CAN THINK THAT EVOLUTION CAN OCCUR GRADUALLY AT SOME OCCUR GRADUALLY AT SOME TIMES AND MORE RAPIDLY AT TIMES AND MORE RAPIDLY AT OTHERSOTHERS

USE YOUR NOTES AND THE TEXT TO USE YOUR NOTES AND THE TEXT TO ANSWER THE QUESTIONS. WRITE THE Q ANSWER THE QUESTIONS. WRITE THE Q AND AAND A

1. COMPARE FORELIMB BONES OF THE 1. COMPARE FORELIMB BONES OF THE ANIMALS AND LIST 2 WAYS THEY ARE ANIMALS AND LIST 2 WAYS THEY ARE SIMILAR.SIMILAR.

2. IDENTIFY THE FIVE TYPES OF FOSSILS.2. IDENTIFY THE FIVE TYPES OF FOSSILS. 3. WHAT CAN PALEONTOLOGISTS LEARN 3. WHAT CAN PALEONTOLOGISTS LEARN

FROM FOSSILS?FROM FOSSILS? 4. WHAT IS THE DIFFERENCE BETWEEN 4. WHAT IS THE DIFFERENCE BETWEEN

GRADUALISM AND PUNCTUATED GRADUALISM AND PUNCTUATED EQULIBRIA?EQULIBRIA?

DINOSAURS EXTREME DINOSAURS EXTREME SURVIVORSSURVIVORS

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