PPT-Natural Selection species –

a group of organisms that can reproduce only with one another vocabulary word Classifying or grouping organisms in certain ways allows scientists to better understand how they interact in nature. Scientific Theory. Social use of the word “theory”. Not the same as in science. Implies a hunch or a casual guess. Scientific Theory. 1. Highly probable explanation based on vast collections of scientific data. 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. Evolution- changes in the characteristics of groups of organisms over time . Charles Darwin was the first to propose a feasible . mechanism. for evolution. It is called . natural selection. . . Evolution by Natural Selection is a theory. . G7- I can list examples of changes in genetic traits due to natural and manmade influences. What is Natural Selection?. Write it on your white board. Which of the following is an example of Natural Selection?. 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.. Number of. individuals. Original. population. Phenotypes (fur color). Original. population. Evolved. population. Stabilizing selection. Directional selection. Disruptive . selection. Original Population. 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. Golden Girls Plus Alex Media Room B Group. Presentation Date: 140523. Presenters: Alex Bentley. . 288531. Nancy . Bocanegra. 320379. Cathy Odom 128180. . Golden Girls Plus Alex Media Room B Group. Presentation Date: 140523. Presenters: Alex Bentley. . 288531. Nancy . Bocanegra. 320379. Cathy Odom 128180. . Spring Feb 2015 . Gene Frequency . Random . g. enetic mutations occurs. Inherent. Variation . Sexual reproduction. . Relationship between Gene Frequency and Natural . S. election. Natural Selection. Charles Robert Darwin. . (1809-1882) was an English naturalist who . born on 12th February, 1809. at Shrewsbury, England. . He went on . voyage. . (trip, expedition, tour). for five years (1831 to 1836) and . 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.