PPT-Evolution – the genetic change in a species over time

Recent Evolution in Humans Evolution is very much still happening today and its happening to us Right here right now Our genes constantly change over time thanks to the power of selection. (Processes + Patterns of Evolution). Evolutionary Change via Selection . . Types of selective pressures may result from: . i.e. climate conditions, food availability, predators, and choice of mate etc.. By C. Kohn. Agricultural Sciences. Waterford, WI. 1. Species Change. The . traits of a species are primarily determined by the types of proteins made in its cells. . All proteins are made from amino acids, and different arrangements of amino acids result in different proteins. . EVOLUTION. What is Evolution?. . What is Evolution?. A process of biological change over generations that makes descendants become gradually . different. from their ancestors. Charles Darwin. gets much of the credit for the theory of evolution . process. Written in the genetic code of species alive today. Story of life on earth is the story of the molecule of life---DNA---and the various ways in which it manifests itself, in the form of living species in order to survive. History of Evolution. The evolution of life is linked to the physical and chemical evolution of the earth.. Life on earth evolved in two phases over the past 4.7 -4.8 billion years. Chemical evolution (1 billion years) of the organic molecules and systems of chemical reactions needed to form the first proto-cells.. -- biological evolution: the process whereby earth’s life changes over time through changes in the genetic characteristics of populations . -- theory of evolution: all species descended from earlier, ancestral species . How does worldview affect how people think about the history of life?. The Evolution of Evolution. Biological evolution: the slow, gradual change in organisms from one kind to another. Species: groups of organisms that look the same and have the same structure. Early atmosphere, evidence, natural selection and disease agents influence natural selection. . Introduction . Evolution “ simple” definition: change over time. Evolution helps us to understand the history of life.. Module 14 . The . Biodiversity of Earth. After reading this module you should be able to. understand . how we estimate the number of species living on Earth.. quantify . biodiversity.. describe . patterns of relatedness among species using a . Patterns of inheritance. Starter. Natural selection recap. Can you remember natural selection from GCSE and AS?. Outline the process of natural selection. Natural selection. Within any species there is variation, due to different alleles. Evolution 9/11. Obj. TSW learn form mistakes made on the quiz, and take notes about evolution after the Environmental Science Current Events. P. 34NB. Make a food chain for the following organisms showing the energy arrows and the . Origins of Life on Earth. 4.7-4.8 Billion Year History. Evidence from chemical analysis and measurements of radioactive elements in primitive rocks and fossils. . Life developed over two main phases:. Evolution & Natural Selection Vocabulary. Types of Selection. Artificial Selection. Selection by humans for breeding of useful traits from the natural variation among different organisms, Ex. Dog Breeding. Topics covered here:. Evolution. Classification. Natural Selection is a major mechanism of evolution. According . to Darwin’s theory of natural selection, competition for . limited resources . results in differential survival. Individuals with more .