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Transcript
Evolution What is Evolution? The gradual change in a species over time Who is the father of Evolution? Charles Darwin What island did he research? What did he collect on his journey? Galapagos; fossils What is Natural Selection? When organisms better suited to an environment live to reproduce while those that cannot survive die; also known as “survival of the fittest” WHAT IS THE DIFFERENCE BETWEEN NATURAL SELECTION AND EVOLUTION? EVOLUTION- PROCESS BY WHICH MODERN ORGANISMS HAVE DESCENDED FROM ANCIENT ORGANISMS. NATURAL SELECTION- BASED ON THE PRINCIPLES OF GENETICS. What are 5 Pieces of Evidence That Support Evolution? • Fossil record • Anatomy – Homologous structures – Analagous structures • Vestigial structures • Embryology • Molecular biology (DNA differences) What Causes Evolution? 1. Mutations: changes in DNA 2. Nonrandom mating: choosing a mate because of proximity (being near by) or certain traits 3. Migration: Immigration = moving into a population; Emigration = moving out 4. Natural Selection: adapt or possibly become extinct What are Adaptations? Evolutionary process by which an animal becomes better suited for its environment. Structural: body structures that allow an animal to find and consume food, defend itself, and to reproduce its species. Behavioral: see p. 4 in your notebook!!! Evolution What is Evolution? The gradual change in a species over time Who is the father of Evolution? Charles Darwin What island did he research? What did he collect on his journey? Galapagos; fossils What is Natural Selection? When organisms better suited to an environment live to reproduce while those that cannot survive die; also known as “survival of the fittest” WHAT IS THE DIFFERENCE BETWEEN NATURAL SELECTION AND EVOLUTION? EVOLUTION- PROCESS BY WHICH MODERN ORGANISMS HAVE DESCENDED FROM ANCIENT ORGANISMS. NATURAL SELECTION- BASED ON THE PRINCIPLES OF GENETICS. What are 5 Pieces of Evidence That Support Evolution? • Fossil record • Anatomy – Homologous structures – Analagous structures • Vestigial structures • Embryology • Molecular biology (DNA differences) What Causes Evolution? 1. Mutations: changes in DNA 2. Nonrandom mating: choosing a mate because of proximity (being near by) or certain traits 3. Migration: Immigration = moving into a population; Emigration = moving out 4. Natural Selection: adapt or possibly become extinct What are Adaptations? Evolutionary process by which an animal becomes better suited for its environment. Structural: body structures that allow an animal to find and consume food, defend itself, and to reproduce its species. Behavioral: see p. 4 in your notebook!!!
