Lesson 6 Development OF Evolutionary Thought PDF

Preview

Summary

Lesson 6: Development of Evolutionary ThoughtWhat I KnowPrior Knowledge: Taxonomy- is the science of naming, describing, and classifying organisms and includes all plants, animals, and microorganisms of the world. Kingdom- is a taxonomic rank which is either the highest rank or in the recent three d...

Description

Lesson 6: Development of Evolutionary Thought What I Know Prior Knowledge: 1. Taxonomy- is the science of naming, describing, and classifying organisms and includes all plants, animals, and microorganisms of the world. 2. Kingdom- is a taxonomic rank which is either the highest rank or in the recent three domain system the rank below domain, 3. Phylum- is a taxonomic ranking that comes third in the hierarchy of classification after domain and kingdom. 4. Class- is taxonomic rank, as well as a taxonomic unit a taxon in that rank. 5. Order- a taxonomic rank used in classifying organisms, generally below the class, and comprised. 6. Family- a taxonomic rank in the classification of organisms between genus and order. 7. Genus- is a group of species that are closely related through common decent. 8. Species- is a group of organisms that share a genetic heritage are able to interbreed, and to create of offspring that are also fertile. 9. Natural Selection- is a pressure that causes groups of organism to change over time. 10. Artificial Selection- describes the human selection of breeding pairs to produce favorable offspring. What's New Pre-Activity: Research 1. Collage 2. Enumerate the scientist and cite their respective contributions in the development of evolutionary thought. SCIENTIST 1. Charles Darwin 2. Carl Linnaeus

 

3. James Hutton



CONTRIBUTIONS Theory on Natural Selection Modern Taxonomic System Paleontology The Principle of

4. Georges Cuvier



5. Jean Baptiste Lamarck



Uniformitarianism The Catastrophism Modern on Earth’s History Concepts of Evolution and Inheritance

What’s More Answer: a. During his travels, Darwin made numerous observations and collected evidence that led him to propose a hypothesis about the way life changes overtime. This hypothesis, now a theory, is regarding evolution or change overtime. Evolution is the process by which modern organisms have descended from ancient organisms. The large variety of living organisms have descended form species similar but less adapted than themselves. b. The tortoises on the Galapagos Islands all had different shaped shells; therefore, they were different species of the same category of tortoises. For example, tortoises in Pinta Island had intermediate shells, tortoises on Hood Island had saddle backed shells, and tortoise on Isabela Island had domeshaped shells. The birds on the Galapagos Island also had slight variations. Darwin found several types of small, ordinary brown birds. Most of them had differently shaped beaks. c. Evolution, or change over time, is the process by which modern organisms have descended from ancient ones. Evolution is referred to as a theory because it is a well- supported explanation of phenomena that have occurred in the natural world. d. Darwin realized after seeing a bunch of fossils that animals must be adapting to better fit their environment, and thus, becoming more diverse. What’s I’ve Learned Answer: 1. True 2. 3. 4. 5.

False False True False

6. True 7. False 8. True 9. False 10. False

11. False 12. True 13. True 14. True 15. True...