PPT-Natural selection and disease resistance in the cocoa tree

Joel T Nelson Damilola Olabode Shawn Trojhan Amazonian tree that has been cultivated for the production of cocoa Originally two main genetic clusters Criollo and Forastero Poor agronomic performance and high susceptibility to diseases hybridization between Criollo and . 57375e product exhibits unique color and 57374avor characteristic which make it ideal for light brown colored endproducts with a mild well rounded cocoa 57374avor PARAGO NATURAL A natural process cocoa powder prepared from quality cocoa beans under 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. The Importance of Evolution in Ecology. Ecologists study proximate or “how” questions:. How nutrients flow through ecosystems. Evolutionary biologists study ultimate or “why” questions:. Why does a stickleback fish have armor in one lake but not another?. 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..  . 3.32 Understand how resistance to antibiotics can increase in bacterial populations (natural selection). . Natural Selection. Darwin put forward the theory of ‘natural selection’.. It can be . 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 . 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. 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…. 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. A. Species overproduce offspring that may survive an environment.. B. There is little variation among members of a population.. C. Competition for resources, mates, and space among species leads to a struggle to survive.. 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 Micro-organisms. , . evolution . and antibiotic resistance. I am learning…. What microbes are in general and about bacteria specifically. What evolution is and how the environment causes bacteria to adapt to survive. Gibson. Geoscience Research Institute. www.grisda.org. Summary. Evolution is the theory that all organisms have descended from a common ancestor by unguided (natural) processes.. The Cambrian Explosion contradicts the pattern . 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.