Ursus horribilis is the scientific name for Grizzly Bear Questions 1. Binomial nomenclature is giving an organism 1 name with parts.

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1 Darwin and Evolution Charles Robert Darwin Link History of Evolution: In the mid eighteenth century, Carolus Linnaeus developed a system of classification that called binomial nomenclature that has 2 parts for 1 name Genus is always Capitalized= Ursus Species is always lower case= horribilis Ursus horribilis is the scientific name for Grizzly Bear 1. Binomial nomenclature is giving an organism 1 name with parts. 2. What would be the Genus name of the Grizzly Bear? 3. What is the species name for the Grizzly bear 4. Who developed binomial nomenclature? Malthus hypothesized that unchecked population growth will quickly exceed carrying capacity (size of population environment can support) leading to overpopulation and social problems. He also stated that war, famine, and disease will keep the world's population in balance. Question 5. What did Malthus say would hold the worlds population in check/balanced?

2 Lamarck ( ) was first to state that descent with modification occurs and that organisms become adapted to their environments Inheritance of acquired characteristics was the Lamarckian belief that organisms become adapted to their environment during their lifetime and pass on these adaptations to their offspring Lamarck believed that the long necks of giraffes evolved as generations of giraffes reached for ever higher leaves; known as the Law of Use & disuse Lamarck would say if you keep flapping your arms you can grow wings If your arm was placed in a cast, eventually it would disappear A child born from a war vet who lost an arm would be born without an arm. 5. Lamarck believed that the giraffes necks grew longer by doing what? 6. Lamarcks law is known as the law of & 7. What does the term acquired mean? use your computer look it up 8. Define inheritance of acquired traits: 9. Give an example of use and disuse: 10. Give an example of inheritance of acquired traits.

3 Darwin's Background & Voyage: He was granted a position aboard the ship HMS Beagle & began a five-year voyage around the world He read Principles of Geology by Charles Lyell that stated that the observed massive geological changes were caused by slow, continuous processes (erosion, uplifting...) Darwin carried this book with him on his voyage as he witnessed Argentina coast earthquakes raising the earth several feet, & marine shells occurring far inland and at great heights in the Andes Darwin's many observations led him to the idea that species slowly change over time Darwin's c omparison of the animals of South America and the Galapagos Islands caused him to conclude that adaptation to the environment can cause diversification, including origin of new species 1. With the parts of the earth shifting, what does it tell you when he found sea shells located far away from the ocean? 2. Darwins observations led him to the idea that species change over time. 3. Adaptation to the environment can cause, including the origin or beginning of a new. 4. The work he did on the islands is where he is most famous for in history.

4 The Galapagos Islands: Volcanic islands off the South American coast Island species varied from the mainland species, and from island-to-island Each island had either long or short necked tortoises depending on the island's vegetation Long Necked Short neck Little vegetation /cactus abundant vegetation Question 1. Why do you think the turtle on the right has a shorter neck than the one on the left? What does it have to reach through to get food? Question 2. Why does the turtle on the left have to have a longer neck? Question 3. The turtles have different length necks because they have had to adapt to get.

5 Finches on the Galapagos Islands resembled a mainland finch, but there were more types Bill shapes are adaptations to different means of gathering food. Galapagos finch species varied by nesting site, beak size, and eating habits Reasons for the different shapes thin sharp beaks are more abundant where the main food was insects and grubs Large claw shaped beaks their main food was buds, fruits and nuts. 4. What are the 3 main things that cause the variation in finches? a. b. c. Question 5. Name the shape of beak the following would have: a. buds, fruits and nuts b. insects and grubs