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Life evolves! What is life? What is evolution? Evidence for evolution Testing evolutionary hypotheses
What is Life? Discuss with your neighbors and write a consensus definition of LIFE. Log on to Learning Catalytics Session ID: Map your seat
Early Evidence for Biological Evolution 1.Homology 2.Fossil record 3.Geological evidence
Homology homologous structure of mammal limbs suggest descent from a common ancestor (Buffon, 1707-1788) See also Fig. 22.17
Homology vs analogy University of California Museum of Paleontology (http://evolution.berkeley.edu)
Testing predictions from evolutionary theory: are tetrapod limbs homologous? University of California Museum of Paleontology (http://evolution.berkeley.edu)
Fossil ancestral tetrapods have same limb structure University of California Museum of Paleontology (http://evolution.berkeley.edu)
Meet Ichthyostega 363 Mya http://download.naturkundemuseum-berlin.de/presse/Darwin/Stuttgart/Fossil_Sclerocephalus.jpg
And lobe-finned fish have similar bone structure 390 mya University of California Museum of Paleontology (http://evolution.berkeley.edu)
Oh no! The fossil record has a gap! Tiktaalik.uchicago.edu
Where can we find exposed rocks of the right age and type? Tiktaalik.uchicago.edu
Tiktaalik, a transitional fossil predicted by evolutionary theory Tiktaalik.uchicago.edu
Fossil Record Definition: The fossil record is all the known fossils and their placements in the formation of rocks and positions in time. Information:
UNIT 5 The origin of life and evolution Biology and Geology 4. Secondary Education HOMOLOGOUS, ANALOGOUS AND VESTIGIAL ORGANS.
Evolution has left much evidence Ch The Fossil Record We use the past to help gather information about our present FOSSILS –Found in _________.
Year 10 Biology 2014 NATURAL SELECTION & EVOLUTION.
Evidence for Evolution by Natural Selection.
EVIDENCE OF EVOLUTION CHAPTER EVOLUTION DEFINED… Evolution is a process of gradual modifications.
Summer 2006 Workshop in Biology and Multimedia for High School Teachers.
Evidences for Evolution. 1. Structural Adaptations –Physical appearance change that increases an organism’s survival –Examples: Mimicry – trying to look.
17.2 Clues About Evolution Mr. Perez. Important Vocabulary Review vocabulary Epoch Sedimentary rock Radioactive element New Vocabulary Embryology.
Phylogeny. A Shared History We’ve talked a lot about common ancestors We’ve seen evidence that species are related to each other Today we’ll examine how.
Evidence of Evolution [15.2] SPI 5 Apply evidence from the fossil record, comparative anatomy, amino acid sequences, and DNA structure that support modern.
Regents Biology Evidence for Evolution by Natural Selection Hunting for evolution clues… Elementary, my dear, Darwin!
EVIDENCE OF EVOLUTION Evidence for Evolution There is a wealth of evidence for the theory of evolution, which includes: Fossil record Biogeography.
SCIENCE Science refers to a system of acquiring knowledge. This system uses observation and experimentation to describe and explain natural phenomena.
Evidence of Evolution by Natural Selection. Evidence supporting evolution Fossil record transitional fossils, fossil strata Molecular record DNA, RNA,
AP Biology Evidence of Evolution by Natural Selection.
Are birds more closely related to reptiles or mammals?
Artificial Selection aka Selective Breeding Darwin noted that plant and animal breeders would breed only the largest hogs, the fastest horses, or the.
Fossils. What is a fossil? A fossil is the preserved remains of a once-living organism.
Evidence for Evolution Biology 40S Summer Session 2013.
Georgia Tech School of Biology Summer 2012 What is Life?
6.2 Evidence Of Evolution. Biogeography Biogeography: The study of where organisms live now and where they and their ancestors lived before in the past.
10.4 Evidence of Evolution KEY CONCEPT Evidence of common ancestry among species comes from many sources.
Regents Biology Evidence for Evolution by Natural Selection.
EVOLUTION CHAPTER 15. Evolution: the change over time of the genetic composition of populations Natural Selection: populations of organisms can change.
Darwin’s Theory Descent with Modification. Biogeography –The first is a pattern in which closely related species differentiate in slightly different climates.
Evidence of Evolution Chapter 15 Part II. 1. Fossil Record Are able to observe links between modern forms and ancestors (ex. transition species) Relative.
What type of rock preserves fossils? A.Organic B.Metamorphic C.Igneous D.Sedementary.
Evolution Only a theory?. Basic premises for this discussion Evolution is not a belief system. It is a scientific concept. It has no role in defining.
Evidence for Evolution. 5 types of Evidence for Evolution Palaeontology Biogeography Comparative Embryology Comparative Anatomy DNA sequencing (biochemistry)
Today you will need: Evidence of Evolution sheet, Bellwork Sheet, Something to write with and your Journal Bellwork for today: If you have Vocabulary Extra.
Evidence for Evolution. FOSSIL EVIDENCE- Provides TRANSITIONAL LINKS Archaeopteryx- links reptiles and birds.
Post Darwinian Developments III. Paleontology A. Intermediate Fossils.
Evidence of Evolution This PowerPoint was revised Jan 1, 2010 for Unique.
Regents Biology Bell ringer- 10/22/14 What is the difference between relative age dating and absolute age dating?
EVIDENCES OF EVOLUTION Fossil Record Biochemical Comparative Anatomy Biogeography Observable Events Artificial Selection.
Do you think these two organisms evolved from a common ancestor? ◦ What evidence would you need to convince yourself?
Ch. 22 Warm-Up 1. Compare and contrast natural selection vs. artificial selection. 2. What are the key ideas of natural selection? 3. Define and give an.
Chapter 15: The Theory of Evolution. 1. The modern theory of evolution is the fundamental concept in biology.
Geological Evolution Plate tectonics or Continental Drift Theory states… Earth’s surface is divided into plates that continually move, taking the continents.
Evidence for Evolution by Natural Selection Hunting for evolution clues… Elementary, my dear, Darwin!
Notes: Ch.6-2 Clues About Evolution EQ: What evidence or clues are used to verify that evolution occurs (give 3 examples)?
AP Biology Evidence of Evolution by Natural Selection Dodo bird.
Unit 8 Evolution Notes Part 4: Patterns of Evolution & Evidence for Evolution.
Evolution Change over time; the process by which modern organisms have descended from ancient organisms.
Evolutionary Evidence Evidence for Evolution 5 scientific disciplines: 1.Paleontology 2.Biogeography 3.Embryology 4.Comparative anatomy 5.Molecular biology.
Chapter 15: Darwin’s Theory of Evolution Section: 15 – 3: Darwin Presents His Case.
Why is Evolution Important? Lydia A. & Daniela H. Block 2 Unit 7 Project.
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