Pop Quiz 1)A Change in a sequence of DNA is called what? 2) Darwin called the ability of an organism to survive and reproduce in its environment what? 3) The change in allele frequencies in genetic drift is due to what? 4) What separates populations in Geographic Isolation?

AIM Turn in Homework Go Over Wednesday’s Lab Notes on Macroevolution New Homework – Vocabulary Chapter 17 due Monday

Macroevolution Macroevolution is the large scale evolutionary patterns that occur over long periods of time. This includes: Extinction, adaptive radiation, convergent evolution, coevolution, punctuated equilibrium, and changes in developmental genes.

EraPeriodTime Permian Carboniferous Devonian Silurian Ordovician Cambrian (millions of years ago) EraPeriodTime (millions of years ago) EraPeriodTime (millions of years ago) 290 – – – – – – –present 65– –65 208– –208 Quaternary Tertiary Cretaceous Jurassic Triassic Vendian650–544 Section 17-1 Figure 17-5 Geologic Time Scale

EraPeriodTime Permian Carboniferous Devonian Silurian Ordovician Cambrian (millions of years ago) EraPeriodTime (millions of years ago) EraPeriodTime (millions of years ago) 290 – – – – – – –present 65– –65 208– –208 Quaternary Tertiary Cretaceous Jurassic Triassic Vendian650–544 Section 17-1 Figure 17-5 Geologic Time Scale

EraPeriodTime Permian Carboniferous Devonian Silurian Ordovician Cambrian (millions of years ago) EraPeriodTime (millions of years ago) EraPeriodTime (millions of years ago) 290 – – – – – – –present 65– –65 208– –208 Quaternary Tertiary Cretaceous Jurassic Triassic Vendian650–544 Section 17-1 Figure 17-5 Geologic Time Scale

Extinction – 99% of all species that ever lived has become extinct Several times in Earth’s history mass extinctions wiped out entire ecosystems. Did and asteroid wipe out all the dinosaurs? What is the result of mass extinctions?

Adaptive Radiation When a species evolves into totally distinct species. Example: Finches that Darwin Observed, Dinosaurs evolved from reptiles. AR can produce species that look alike but aren’t related

Convergent Evolution The Process that makes unrelated species resemble one another. Example – similar shapes of sharks and dolphins.

Coevolution Species interact in some way over long periods of time – Example flowering plants and the bees that pollinate them. Species evolve in response to changes in each other over time.

Video 2 Click the image to play the video segment. Video 2 Evolution of Cells

Punctuated Equilibrium Long stable periods of fossil records are interrupted by a burst of new species. Based on fossil record. Often times rapid specie changes are recorded in fossil record Example Cambrian Explosion

Developmental Genes and Body Plan Changes to the developing embryo genes can result in big changes to the organism. Example - Changes in the activation of genes can make the difference between having short legs and long legs

Macroevolution Review Macroevolution is the large scale evolutionary patterns that occur over long periods of time. This includes: Extinction, adaptive radiation, convergent evolution, coevolution, punctuated equilibrium, and changes in developmental genes.