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Evolution Test Review 1. The theory of evolution by natural selection was developed by 381 2. A mutation is helpful depending on whether it makes the living thing 3. A trait that makes an individual different from others in its species is 379 4. Albino deer that are born in forest surroundings will probably 5. The most important advantage an adaptation gives a living thing is to help it to 380 6. Feathers on birds are an example of 380 7. Many scientists believe that over millions of years, a horse changed from a small animal to a large animal. This is an example of 369 8. Rabbits fight for food and shelter. This is an example of 380 9. One kind of evidence that life existed in the past is called 382 10. If animals of the same species become separated in to different environments, the animals in each environment may develop into different 404 11. A mutation is a change in the _______ of an organism. 307 12. Animals that are best fit for their environment are more likely to 381 Mark the following as true or false. _______13. . Natural selection is a change in the hereditary traits of a species over a period of time. 381 _______14. Hawks eat more dark lizards if they are on dark soil. 381 _______15. Comparing embryos of different animals provides evidence for evolution. 385 _______16. One group of Homo sapiens (humans) became extinct. The other group evolved into modern humans. 841 ______ 17. A change in climate may bring about the development of a new species. _______18. Darwin’s theory of evolution stated that organisms could develop traits they needed for survival. 376 _______19 All fossils are found in sedimentary rocks. 418 _______20. The organisms that are alive today are best suited to their surroundings. _______21. When individuals of different species mate, they produce infertile offspring. _______22. Homologous structures are similar features on different animals. 384 Match the phrases with the letter of the correct word: A natural selection 1098 B. competition 380 _______23. _______24. _______25. _______26. _______27. _______28. _______29. _______30. C. . adaptation 1087 The sharp beak of an eagle is used to tear off meat. The fins of a fish are used in swimming. Two robins fight over a worm. The trunk of an elephant is used for picking up grass. The frog that blends into its pond is able to survive and reproduce. Grasses near a tree use the same water. The slowest deer is eaten by a wolf. A white rabbit will not survive in a forest environment Use Darwin’s four points of evolution to match with the sentences below. A. B. C. D. Animals that are the most fit are the ones that survive 380 There is competition among species for food, water, and shelter 380 There is variation among animals of the same species 379 Living things have more offspring than can survive 386 _______31. Foxes can be red, black, gray, or brown, even though they are the same species _______32. Foxes use the same food and dens (homes) as other foxes. _______33. Some bears are larger than others _______34. During a long winter, deer are all competing for the same food. _______35. . The fastest rabbits are the ones that get away from the fox _______36. Mice can have more than 20 babies at a time, but only one or two survive. _______37. The fastest lions are the ones that catch the zebras and survive. _______38. A lobster may produce 500,000 eggs at one time. _______39. Not all birds of one species are the same size. _______40. Grizzly bears fight over a stretch of river to catch fish. Put the correct answer on your answer sheet. _______41. _______42. _______43. _______44. _______45. When digging for fossils, as you dig deeper, the fossils are 419 Most animals that die will become fossils. 418 All mutations are harmful to living things. 308 Animal species that are no longer alive are 434 An adaptation can help an animal to. 380 46. Charles Darwin’s observation that finches of different species on the Galápagos Islands have many similar physical characteristics supports the hypothesis that these finches 382 47. If a mutation introduces a new skin color in a lizard population, which factor might determine whether the frequency of the new allele will increase? 397-398 48. The separation of populations by barriers such as rivers, mountains, or bodies of water is called 405 49. A factor that is necessary for the formation of a new species is 404 50. What situation might develop in a population having some plants whose flowers open at midday and other plants whose flowers open late in the day? 405 51. When completely different animals look similar because they live and evolve in the same type of area, it is called what? 437 52. When a mass extinction occurs, what type of evolution follows? 436 You will be asked to write a clew paragraph of two out of three of the following: 1. How DNA provides evidence for evolution. 2. Explain how hominid fossils show evidence for evolution. 3. Explain three isolation mechanisms that can lead to speciation