PPT-Natural Selection &

Charles Darwin By Amber Lopez Vanessa Jaramillo Sherry Rodriguez and Ashley Ramirez Charles Darwin Charles Robert Darwin was an English naturalist and geologist his best known work was . Evolution. Believed to be 4.5 billion years old. Thought to have had a very anaerobic atmosphere. Earliest organisms were able to survive primitive environments. Prokaryotes that resemble today’s bacteria. Concept 51.5 . Nia. Sanders . Foraging Behavior . Optimal foraging theory- views foraging behavior as a compromise between the benefits of nutrition and the costs of obtaining food . Natural selection should favor foraging behavior that minimizes cost and maximizes benefits . How does natural selection change . a population?. P. 247-248 What are the five important principles of natural selection? . P. 250 . What are two sources of variation? . What is a niche? . P. 258 - 259. Evolution: Teachable Tidbit. Context. : . Introductory biology for science majors . 2 full class periods and a follow-up exam question. Learning Goal. : We want students to understand that natural selection is a phenomenon that applies to their lives. OBJECTIVES. Today, you will be able to…. Explain the process of evolution by natural selection. Explain adaptation. What exactly is “evolution” in THIS class?. Evolution. - a change in the . GENETIC. Relative fitness in relation to. Natural selection. Natural selection often has “survival of the fittest” and the “struggle to survive” associated with it, but it doesn’t necessarily mean direct physical conflict between two organisms.. IB Diploma Biology. A . Return. to Senn Island…. Evolution & Natural Selection (5.1-5.2). IB Diploma Biology. Pentadactyl Limbs. Organism (type). Function of pentadactly limb. Crocodile (reptile). 3 Mechanisms for selection and an introduction to . Hardy-Weinberg. Lyell’s Influence. In attempt to . explain the past in terms of present day processes. , Darwin went to local farmers and animal breeders and observed…. Golden Girls Plus Alex Media Room B Group. Presentation Date: 140523. Presenters: Alex Bentley. . 288531. Nancy . Bocanegra. 320379. Cathy Odom 128180. . According to evolutionists. Characteristics of Organisms in the Galapagos Islands compared to nearby South America. Darwin hypothesized that animals came to the . Galapagos. from the . mainland. and they became . Spring Feb 2015 . Gene Frequency . Random . g. enetic mutations occurs. Inherent. Variation . Sexual reproduction. . Relationship between Gene Frequency and Natural . S. election. Natural Selection. For more information on how you can help our environment or to make some suggestions of your own please go to wwwcoolaustraliaorgrealised that the beaks were di31erent depending on local food source F Science. Learning intention. To know what 'natural selection' is and how it works. . You will need. A pen and paper or your laptop to record your answers. . The internet . to access the weblinks on later slides. wallace. and was explained in book “ on the origin of species by means of Natural Selection . . Darwin put the theory based on his observations as he travelled round the world on the ship Beagle..