HW #11 - Biology Honors Prentice Hall Textbook by...

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Biology Honors Prentice Hall Textbook by Miller/Levine Hw #11 Ch. 15 pg. 389 #1-34 11/6/09 pg. 391 #1-10 Period 2 1. C 2. A 3. A 4. A 5. D 6. B 7. A 8. A 9. C 10. C 11. Evolution means change over time, and it is the process by which modern organisms have descended from ancient organisms. For examples, we have evolved from homo sapiens to humans over time. 12. One day in the Brazilian forest, Darwin collected 68 different species of beetles and realized that an enormous number of species inhabit the Earth. Darwin also notices that in the Galapagos Islands, the shell and neck of the tortoises differed amongst the each island. Darwin also saw several types of small, ordinary looking brown birds hopping around looking for seeds in the Galapagos Islands. 13. Darwin observed that the characteristics of many animals and plants varied noticeably among the different island of the Galapagos. Darwin wondered if animals living on different islands had once been members of the same species. 14. Geologists James Hutton and Charles Lyell argued that the Earth is many millions of years old. They also argued that the processes that changed Earth in the past were the same as the processes that are still changing Earth in the present. 15. Lamarack proposes use and disuse when he says that organisms could alter the size or shape of particular organs by using their bodies in new ways. For example, by trying to use their front limbs for flying, birds could eventually form wings. 16. Natural variation causes many different kinds of characteristics in one species, and gives diversity to evolution 17. Artificial selection is when humans hand-pick the most useful variations in species created by nature.
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HW #11 - Biology Honors Prentice Hall Textbook by...

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