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Charles Robert Darwin Creator of the Theory of Evolution by Kenya Pierre May 2005.

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Presentation on theme: "Charles Robert Darwin Creator of the Theory of Evolution by Kenya Pierre May 2005."— Presentation transcript:

1 Charles Robert Darwin Creator of the Theory of Evolution by Kenya Pierre May 2005

2 The Theory of Evolution Charles Robert Darwin is famous for his theory of evolution. Darwin had several related ideas.

3 Ideas of Evolution These ideas were that: 1)Evolution occurred 2)The primary mechanism for the evolution was called natural selection.

4 Ideas on Evolution 3)The evolutionary change was gradual 4)The species present today originated from a single original life

5 Speciation Speciation means that all life used the branching process from an original life.

6 Speciation This means that no two members of the same species are exactly alike.

7 Speciation Each one has an individual combination of traits.

8 Natural Selection Natural selection is like the survival of the fittest or domestic breeding.

9 Natural Selection This trait could end up giving it an advantage to the environment.

10 Natural Selection The organism with this trait could survive longer and produce more offspring.

11 Natural Selection Gradual changes in the species will occur as more members obtain this helpful trait.

12 Natural Selection These changes may cause the animal to have markings that make them stand out and become easy targets.

13 Natural Selection This gives them a less chance to survive and reproduce. An example of this change is an animal possessing the albino gene.

14 Mutations Genetic mutations are in the organism’s genetic code. These mutations can accumulate making a new organism.

15 Mutations When this happens the disadvantaged members of the species will die out.

16 Mutations and Adaptations When the evolutionary process happens there are some adaptations that will happen.

17 Mutations and Adaptations Adaptations can occur when two species evolve together.

18 Mutations and Adaptations However interactions between species is not always beneficial.

19 Mutations and Adaptations These interbreeding offspring is sterile, meaning they cannot reproduce.

20 Mutations and Adaptations Natural variation may also occur in a species. This is when the normal is changed and an example of this is color or size.

21 Mutations and Adaptations For food, the giraffe stretched for leaves, and its neck grows. The result is that the giraffes can reach high leaves.

22 Mutations and Adaptations Mutations are rare and occur when a mistake is made copying the cells or genes.

23 Mutations and Adaptations Mutations can create two different types of traits. The neutral traits which neither improve or harm an organism's fitness.

24 Mutations and Adaptations Then there are some traits that reduce and organism’s ability to survive, perhaps causing it to have the advantage.

25 Gene Pool An irreducibly complex system is a system composed with multiple parts. Each part is necessary for the system’s function.

26 Gene Pool If one part is missing then the system will fail to function. These individual parts are integral.

27 Gene Pool Adults in the species give discreet hereditary particles, genes, to their young. These discreet single genes are shuffled through the generations.

28 DNA Methylation DNA Methylation is a type of chemical modification which involves the addition of a methyl group to the carbon-5 of the cytosine pyridine ring.

29 DNA Methylation DNA Methylation is universal in vertebrates. DNA Methylation is an important chemical process of many living organisms.

30 DNA Methylation Disruption to the DNA Methylation machinery would result in disability or fatal diseases such as ICF Syndrome (Immunodeficiency centeromere instability and facial anomalies).

31 About Me My name is Kenya Pierre. I love to read manga. The last one I read was Kodocha volume 7. I like to play video games. However, I don’t have the system at my house so I have to play at my friends house. My favorite video game is Kingdom Hearts. I have a dog. She is a border collie and her name is Sandy. My favorite animal is a dog. They are sooo cute!!!

32 Bibliography Authored by Richard Dawkins, first appeared in the British Edition of Microsoft Encarta Encyclopedia 98 reproduced with Microsoft Corporation (C) Copyright 1998 Microsoft Corporation copyright © 1995-2002 Leadership U Telling the Truth Project Updated: 14 December 2002 by Dr, Ray Bohlin WordNet ®2.0 ©2003 Princeton University


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