Evidence for Evolution

Slides:

Advertisements

Similar presentations

How Scientists Determined that Living Things Change Over Time

Advertisements

EVIDENCE OF EVOLUTION.

Evolution. Evolution, n. [L. evolutio - an unrolling] 1: a process of change in a certain direction 2: a theory that the various types of animals and.

Adaptation and Evidence for evolution. What’s the adaptation?

Biological Evolution Standard B – 5.5. Standard B-5 The student will demonstrate an understanding of biological evolution and the diversity of life. Indicator.

D.5: Phylogeny and Systematics

Recap on Evolution. What is the Theory of Evolution? Evolution is defined as change over time. One of the earliest theories of evolution was put forward.

Lecture #3 Evidence of Evolution

Evidence for Evolution Biology 40S Summer Session 2013.

Evidence of Evolution.

Are birds more closely related to reptiles or mammals?

CHAPTER 13: THE ENVIRONMENT AND CHANGE OVER TIME

Chapter 8 Molecular Phylogenetics: Measuring Evolution.

AP Biology Chapter 15.3 Evidence of Evolution Dodo bird.

Diversity through extrapolation of microevolutionary mechanisms.

Evidence for Evolution

Regents Biology Evidence for Evolution by Natural Selection Hunting for evolution clues… Elementary, my dear, Darwin!

GENETIC CHANGE IN A POPULATION OVER TIME. Types of evidence of evolution  Fossils  Homologies  Anatomical  Molecular  Developmental  Biogeography.

Evidence for Evolution

Evidence for Evolution by Natural Selection.

Regents Biology Evidence for Evolution by Natural Selection.

Evidences for Evolution. 1. Structural Adaptations –Physical appearance change that increases an organism’s survival –Examples: Mimicry – trying to look.

Evidence of Evolution Original presentation courtesy of Mrs. Jennifer Boyd, WHS.

Evidence for Evolution by Natural Selection Hunting for evolution clues… Elementary, my dear, Darwin!

Evidence for Evolution

Evidence for evolution in Darwin’s time came from several sources.

Descent with Modification

Fossils provide a record of evolution.

Evidence for Evolution

EVIDENCE OF EVOLUTION.

(Supported by 5 branches of science)

Biological Evolution Standard B – 5.5.

16.1 Evolution and Its Core Principles

Lecture #3 Evidence of Evolution

SB5c. Explain how fossil and biochemical evidence support the theory.

Evidence of Evolution review

Catalyst: If the answer is False, explain why.

Evidence for Evolution

Evidence of Evolution Darwin Argued That Living Things Have Been Evolving On Earth For Millions of Years. Evidence For This Process Could Be Found In:

Evidence for Evolution

Bio Do Now Get out natural selection lab

Fossils provide a record of evolution.

Fossils provide a record of evolution.

Fossils provide a record of evolution.

D.5: Phylogeny and Systematics

Evidence and Phylogenetic trees

Evidences of Evolution

EXAMPLES OF ADAPTATIONS

Evidence for Evolution

WARM UP List the major eras in geologic/life history, and the years they encompass. Describe why major changes in organisms occur at the end of one era.

Evidence for evolution in Darwin’s time came from several sources.

Evidence for Evolution

Evidence of Evolution 2 Types of Evolution: Insecticide Resistance :

Evidence for Evolution

Evidence of Evolution.

Comparative Embryology

Evidence of Evolution Several types of information support Darwin’s theory of evolution. anatomy homologous, analogous, and vestigial.

Evidence for Evolution

Natural Selection and Adaptation

Fossils provide a record of evolution.

Fossils provide a record of evolution.

Evidence for Evolution

Fossils provide a record of evolution.

Evidence of Evolution Chapter 15 Section 3.

Evidence of Evolution.

Evidence for Evolution

Fossils provide a record of evolution.

Evidence for Evolution

Fossils provide a record of evolution.

Fossils provide a record of evolution.

Presentation transcript:

Evidence for Evolution Time Fossil Record Homologous Structures Embryology Molecular Biology

Is the Earth Old Enough?

Time Scale for Life

Evidence for Evolution Time Fossil Record Homologous Structures Embryology Molecular Biology

The Fossil Record

A Whale of a Story

Barbellus

Evidence for Evolution Geologic Time Scale Fossil Record Homologous Structures Embryology Molecular Biology

Homologous Structures

Genes and Homologous Structures How many? How long?

Evidence for Evolution Geologic Time Scale Fossil Record Homologous Structures Embryology Molecular Biology

Evolution Replays in the Embryo

Whale Embryos

Eye Evolution

Evidence for Evolution Geologic Time Scale Fossil Record Homologous Structures Embryology Molecular Biology

Molecular Biology Clues Proteins Enzymes – amino acid sequences Genetic Material DNA base sequences Nuclear DNA Mitochondrial DNA

Cytochrome C found in all aerobic organisms in ETC in mitochondria essential enzyme 104 amino acid polypeptide chain

Cytochrome C amino acid sequence All have a phenylalanine at position 10, proline at 30 and methione at 80

Clues from Cytochrome C 66* 36 31 20 17 13 Human Pig Duck Snake Tuna Moth Yeast * Number of base differences in gene coding for Cytochrome C

Are Dinosaurs Among Us?

The length of the branch is proportional Phylogenetic Tree of Species based on the Amino Acid Sequence of Cytochrome c. Figure from Voet, Biochemistry - copyright 1990 John Wiley & Sons The length of the branch is proportional To the number of differences in the amino acid sequence

Human Migration http://news.stanford.edu/news/2008/february27/med-genemap-022708.html