Do Now – 12/5 What is the Fossil Record? What are some drawbacks to the fossil record?

Slides:

Advertisements

Similar presentations

KEY CONCEPT New species can arise when populations are isolated.

Advertisements

LS Chapter 5-3 Evolution of Species.

Restless Continents. Wegener’s Theory of Continental Drift  Alfred Wegener looked at the continents as a puzzle.  He came up with the theory of “Continental.

WHAT IS EVOLUTION? Evolution is the gradual change in a species over time. A species is a group of similar organisms that can mate with each other and.

Chapter 17.3 (Pgs ): The Process of Speciation

Formation of Species A species is a population of organisms that can successfully interbreed but cannot breed with other groups. Existing species are changed.

E V O L U T I O N. SPECIATION : the development of a new species Sometimes the variation among organisms is too great; eventually they could become separate.

Evidence of Evolution. Voyage of the Beagle  Charles Darwin’s observations on a voyage around the world led to new ideas about species.

The Process of Speciation

Darwin vs. Lamarck. Jean-Baptiste LaMarck French, Early 1800’s Theory of Inheritance of Acquired Characteristics Two main points…

Chapter 5, Section 1 Darwin’s Voyage

Evolution is supported by an overwhelming amount of scientific evidence Chapter 22, Section 3.

Evolution Evidence and Ideas.

Evidence of Evolution Palaeontology Biogeography Comparative Anatomy Comparative Embryology Comparative DNA By: Samantha Assaf and Erin King.

Evolution and Change Chapter Fourteen: Earth and Life History 14.1 Evidence from Rocks 14.2 How Earth Changes 14.3 Natural Selection.

Natural Selection. Darwin vs Lamarck Lamarck - animals pa on acquired traits Darwin - individuals are selected for survival by combinations of traits.

Evolution by Natural Selection

Speciation Biology 10 at GI Biology 11. Speciation  The development of a new species  Usually the result of reproductive isolation How does this occur?

MECHANISMS OF EVOLUTION. POPULATIONS, NOT INDIVIDUALS, EVOLVE An organism cannot change its phenotype. A phenotype can become more predominant in a population,

Evolution Chapter Review

Chapter 17: Evolution of Populations Section 17-3: The Process of Speciation.

Chapter 8, Section 4 Movement of Earth’s Plates. Earth’s Plates Tectonic Plates Make up Earth’s outer layer (crust) Plate boundaries do not always line.

Species & Speciation Morphological Species Concept Species are based on comparison and differences existing in the physical characteristic between.

Evolution Chapter 6. Pre-Darwinian Theories

Evolution and Change Chapter Eleven: Evolution Chapter Twelve: Earth and Life History.

Evolution Chapter 6. Pre-Darwinian Theories

Continental Drift.

Evidence for Evolution

Evolution, Natural Selection, Cladograms and Evidence of Evolution

Theory of Continental Drift

Evidence of evolution.

Descent with Modification

The Process of Speciation: Ch. 17.3

Patterns of evolution.

Speciation evolution of a new species

Evidence of Evolution.

Concept 2: Descent with Modification

Natural Selection Vocab Review

Evidence for Evolution

Population Genetics.

How Populations Evolve

KEY CONCEPT New species can arise when populations are isolated.

Evidence of a Changing Earth

DO NOW Pick up worksheet packet. Get out notes….last three pages go with this unit. Get out a new EOC daily sheet.

EQ: What factors are involved in the formation of new species?

KEY CONCEPT New species can arise when populations are isolated.

E9 Natural selection and geographical isolation can lead to speciation

EVIDENCE OF EVOLUTION I

KEY CONCEPT New species can arise when populations are isolated.

Migration The movement of individuals into, out of or between populations. This movement will permanently change the gene pool and is not just done for.

Evidence of Evolution.

Evidence for Evolution

Notes: What is Evolution (Genetic Basis)

Name 2 vestigial structures in the human body.

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 the.

Unit 7 Notes: Evolution, Sex, Misconceptions

KEY CONCEPT New species can arise when populations are isolated.

Plate Tectonics Geo Science.

Chapter 2 Lesson 3 Biogeography.

IPC do now Critical Thinking

KEY CONCEPT New species can arise when populations are isolated.

How Populations Evolve

KEY CONCEPT New species can arise when populations are isolated.

Today’s Agenda… 3-1 Bellringer: Corrections on yesterday’s bellringer.

Presentation transcript:

Do Now – 12/5 What is the Fossil Record? What are some drawbacks to the fossil record?

This Day in History The first US Fraternity formed (1776) The Gold Rush started (1848) First electric car built (1893) Albert Einstein comes to America (1932) 21 st Amendment Ratified

Fossil Record

Biogeography Study of past and present geographical distribution of species – Continental Drift – Geographic Isolation

Geographic Isolation members of the same species can no longer mate due to geography, and the result is two isolated gene pools that evolve over time to become two separate species.

Continental Drift implies that as the super continent Pangea split to form separate continents, members of the same species were separated by water and over time became separate species.

Questions Did continental drift lead to geographic isolation? What are some other land features that could lead to geographic isolation?