BIO2-11_12-Q3-0401-PF-FD.pptx

artificial and natural selection

1. General Biology 2 Science, Technology, Engineering, and Mathematics Lesson 4.1 Artificial and Natural Selection

2. ‹#› Domesticating animals is essential for food security since humans rely on livestock as a food source.

3. ‹#› Did you know that farming plants and animals has some effects on the structure of their population?

4. ‹#› How do you think a population of organisms changes over time?

5. ‹#› Explain the mechanisms that produce change in populations from generation to generation (e.g., artificial selection, natural selection, genetic drift, mutation, recombination) (STEM_BIO11/12-IIIc-g-9).

6. ‹#› Discuss the concept of natural and artificial selection. Enumerate the effects of these processes on the population.

7. ‹#› A population refers to a group of individuals that belong to a species. This lives in an area and interbreed with one another to form offspring. Population A population of migrating bird species

8. ‹#› Concept of Evolution Evolution is a process where the transformation of species happens through time.

9. ‹#› Concept of Evolution The ancestor, known as the founder species, diverged into two lineages. First lineage Second lineage

10. ‹#› Concept of Evolution Amakihi and Nihos finch are the descendants and the products of speciation.

11. How can evolution cause changes in population? ‹#›

12. ‹#› Concept of Evolution It is the genetic changes in populations that are passed on to successive generations over time.

13. ‹#› What is the difference between natural and artificial selection?

14. ‹#› Natural selection refers to the process where individual organisms that have favorable traits experience greater fitness and reproductive success than those that do not have the trait. Mechanisms of Evolution N A T U R A L Selection Definition Importance Changes in Population

15. ‹#› Selected traits through natural selection are the ones that deal with changes in the environment wherein they allow organisms to capture food efficiently, or escape predators swiftly. These changes through natural selection leads to higher chance of survival of the species in the community. Mechanisms of Evolution N A T U R A L Selection Definition Importance Changes in Population

16. ‹#› Mechanisms of Evolution N A T U R A L Selection Definition Importance Changes in Population A classic example is the finches that have different beak shapes and sizes depending on the type of food that is available in their habitat.

17. ‹#› Mechanisms of Evolution N A T U R A L Selection Definition Importance Changes in Population An example of the effect of natural selection to the population

18. ‹#› Mechanisms of Evolution Natural selection and changes in population

19. ‹#› Mechanisms of Evolution Natural selection and changes in population

20. ‹#› Mechanisms of Evolution Natural selection and changes in population

21. ‹#› Mechanisms of Evolution Natural selection and changes in population

22. ‹#› Artificial selection is the process of selecting plants or animal individuals for breeding. This principle was developed from our understanding of heritable traits. Mechanisms of Evolution A R T I F I C I A L Selection Definition Importance Changes in Population

23. ‹#› Artificial selection served as the primary principle behind selective breeding used for producing new varieties of plants and animals. Through selective breeding, there is an increase in chances of achieving desirable traits that could lead to higher production in any plant or animal derived products. Mechanisms of Evolution A R T I F I C I A L Selection Definition Importance Changes in Population

24. ‹#› Mechanisms of Evolution A R T I F I C I A L Selection Definition Importance Changes in Population Varieties in bean products achieve through selective breeding

25. ‹#› Mechanisms of Evolution A R T I F I C I A L Selection Definition Importance Changes in Population Evolution of pig through series of domestication breeding

26. What could be the effect of artificial selection in a population? ‹#›

27. ‹#› Identify if the statements are true or false. P opulation refers to the group of all individuals belonging to a species that live in a particular area and interbreed with one another to form an offspring. Artificial selection occurs without human intervention. Selective breeding can lead to the domestication of animals.

28. ‹#› Classify if the given scenario is an example of natural or artificial selection. breeding of dogs speciation of domesticated doves breeding of poultry animals evolution of fruit flies in the wild changes in zoo animals

29. A population refers to the group of all individuals belonging to a species that live in a particular area and interbreed with one another to form an offspring. Evolution is a process involving the transformation of species happens through time. This process may include changes in terms of morphology or genetics of the species. ‹#›

30. Natural selection refers to the process where individual organisms having favorable traits have greater survival fitness and reproductive success than those that do not have the trait. Artificial selection is a process of selecting plants or animal individuals for breeding. This principle was developed from our understanding of heritable traits . ‹#›

31. ‹#› ‹#› Do you think natural selection will happen without the changes in the environment? Why?

32. ‹#› Baum, David, Douglas Futuyma, Hopi Hoekstra, Richard Lenski, Allen Moore, Catherine L. Peichel, Dolph Schluter, and Michael Whitlock. 2013. The Princeton Guide to Evolution. Princeton University Press. College of the Redwoods. Beaupre-Riggs. Lab 13: Evolution and Natural Selection. https://redwoods.instructure.com/courses/2715/files/126998 Coyne, Jerry. 2009. Why Evolution Is True. Oxford University Press. Genetic Science Learning Center. July 1, 2013. Johnson, G.B., and Raven, P.H. 2001. Biology: Principles & Explorations. Austin: Holt, Rinehart, and Winston. Klug, W.S., Spencer, C.A., and Cummings, M.R. 2016. Concepts of Genetics. Boston: Pearson. Mader, S.S. 2014. Concepts of Biology. New York: McGraw-Hill Education. Reece, J.B. and Campbell, N.A. 2011. Campbell Biology. Boston: Benjamin Cummings/Pearson.