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Chapter 8 flashcards _ Quizlet

Chapter 8 flashcards _ Quizlet - Chapter 8 Created by...

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Chapter 8 Created by DeepSeaBee 33 terms · What is Lift? a guide to Biology Define natural selection. Natural selection is a mechanism of evolution that occurs when there is a heritable variation for a trait and individuals with one version of the trait have a greater reproductive success than do individuals with a different version of the trait. It can also be thought of as the elimination form a population of alleles that reduce the reproductive rate of individuals carrying those alleles relative to the reproductive rate of individuals who do not carry them. Change in genetic frequencies. Evolution Why is it said that humans are related colser to Rhesus monkeys than dogs? there is a, 138 match of amino acids in the beta chain of hemoglobin. Vestigial Structures Evolutionary left overs., remnant of a structure that may have had an important function in a species' ancestors, but has no clear function in the modern species. Homologous bone structures. Similarities in the bone structur of the forlimbs of mammals aare a good example of Homogous bone structures. The average time to death from starvation in a fruit fly is about 20 hours. Selecting for increased starvation resistance in fruit flies: can produce populations in which the average time to death from starvation is 160 hours.
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Georges Cuvier's discovery of fossils of Irish elk and giant ground sloth: demonstrated that extinction must have occurred in past. While on the voyage of the HMS Beagle, Darwin: nurtured his love of studying nature, exploring plant and animal diversity, and collecting fossils.
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