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Jigsaw activity: How does mutation lead to Adaptation ? What is Natural Selection ?

Jigsaw activity: How does mutation lead to Adaptation ? What is Natural Selection ? Give an example of Natural Selection. What is the Theory of Evolution ? What evidences support Evolution?. Jig saw Activity: Adaptation, Natural Selection, and Evolution. Jigsaw activity:.

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Jigsaw activity: How does mutation lead to Adaptation ? What is Natural Selection ?

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  1. Jigsaw activity: How does mutation lead to Adaptation? What is Natural Selection? Give an example of Natural Selection. What is the Theory of Evolution? What evidences support Evolution?

  2. Jig saw Activity: Adaptation, Natural Selection, and Evolution

  3. Jigsaw activity: On a piece of A3 paper, write a paragraph summary that answers your assigned question. Be ready to present your answers to your peers. How does mutation lead to Adaptation? 3. Give an example of Natural Selection. 5. What evidences support Evolution? 4. What is the Theory of Evolution? 2. What is Natural Selection?

  4. 1 GENETIC VARIATION leads to Adaptation

  5. Fig. 22.11. Some spectacular adaptations.

  6. Adaptation • Adaptation is a long evolutionary process where a population becomes better suited to its habitat. Feature which is especially important for an organism's survival. Horse’s teeth Such adaptations are produced by the better suited forms reproducing more successfully, which is natural selection.

  7. 2 Adaptation is driven by Natural Selection

  8. There are 2 variations of the beetles, green and red. The birds prefer eating the green beetles. Over generations the red beetles increase in population because they are not eaten by the birds. More survive to produce more offspring. Generations later…. Over time the red beetles have been selected over the green beetles

  9. 3 An Example of Natural Selection

  10. How did giraffe’s develop their long necks? Giraffe you tube video

  11. Incorrect model of evolution Change through use and disuse

  12. Ancestors had different neck lengths Through natural selection, longer necks survived and passed on their genes. Eventually all giraffes had long necks. Natural Selection’s Explanation

  13. 4 Theory of Evolution

  14. Evolution • Evolution is the change in the inherited traits (passed on from parents to offspring) of a population over many generations. These traits could be physical, chemical or behavioral. This change is caused by mutations in the genes.

  15. Video Clip: http://www.youtube.com/watch?v=yVqJ_mQazik

  16. How does Evolution Work? Natural Selection(survival of the fittest) is simply the logical result of four features of living systems: INHERITANCE VARIATION Individuals in a population vary from one another (different genes caused by mutations) parents pass on their traits to their offspring genetically SELECTION some variants reproduce more than others TIME successful variations accumulate over many generations

  17. 5 Evidences supporting Evolution

  18. Similarities in Genetic Code

  19. 225 Million Years Ago the continents were together making a super continent called Pangaea • When the continent began to split populations were separated.

  20. This increased the variety of living things because they all had to adapt to different and new environments and habitats.

  21. ONEA Common Ancestor

  22. SIMILARITIES IN STRUCTURES

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