PPT-Natural Selection

Anim A l ADAPTATIONS What is natural selection This is the idea that a specific physical trait of a population made it more likely to survive the given environment Some researchers believe that language was created in order to help humans survive A group of hunters communicating to become more effective is one example of how this could happen If a species lacks a certain trait that will allow it to survive there are two options Either the . E.g., the evolution of pepper spiciness. …. What does natural selection “act on”?. the . gene. the . individual. the . population. or . group. the . species. They are in you and me; they created us, body and mind; and their preservation is the ultimate rationale for our existence. They have come a long way, those replicators. Now they go by the name of genes, and we are their survival machines.. 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. 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. Testable Hypotheses. Use if…then… logic. Collect data . Reject the null hypothesis. Support the hypothesis. Devise another test, and another, and another!. Darwinian Theory. Evolutionary change is inevitable if:. What is natural selection?. It’s the . process whereby organisms better adapted to their environment tend to survive and produce more offspring. . The . theory. of its action was first fully . explained . Motivation. Most powerful mode of evolution. Explains observation of Descent with Modification. Nonrandom survivorship/reproduction of individuals based on particular features of their phenotype. . Any environmental agent may be the cause of natural selection. Golden Girls Plus Alex Media Room B Group. Presentation Date: 140523. Presenters: Alex Bentley. . 288531. Nancy . Bocanegra. 320379. Cathy Odom 128180. . Evolutionary Ideas. A. lthough Darwin is given much credit for evolutionary theory, he was not the first person to come up with the idea.. Evolution is the change in a population over time.. The concept of evolution had been discussed for more than 100 years prior to Darwin’s theory.. 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.. Download PDF The Encyclopedia of Natural Remedies™ eBook by Dr Freddie Masaki - An eBook That Provides Natural Remedies for Treating Various Diseases.