Quiz 2: Evidence of Evolution | | 1. Which of the following would be considered homologous structures? Question options: |[pic] |tentacles of an anemone and tentacles of a squid | |[pic] |wings of a bird and arms of a human | |[pic] |wings of a butterfly and wings of a bird | |[pic] |lungs of a mammal and trachea of an insect | 2. According to modern evolutionary theory‚
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Evolution of polar bears Evolution is the procedure in which different kinds of living species are believed to have developed from earlier forms over many centuries. The two competing theories in evolution are Lamarckism and Darwinism. It is believed that Darwin’s theory of Natural selection best fits the polar bears evolution because the bears adapted to a life of hunting seals and surviving extreme cold. One of the most notable adaptations was that they developed the ability to survive on a fat-rich
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The Theory of Evolution by Natural Selection has been highly scrutinized since its first publication in 1859. The theory states‚ “the process by which organisms change over time as a result of changes in heritable physical or behavioral traits. Changes that allow an organism to better adapt to its environment will help it survive and have more offspring”. This theory is the basis of all biological sciences‚ and it lays the foundation for various scientific schools of thought. However‚ as in all things
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There is a great deal of evidence to support that evolution did indeed happen. Evolution is the changes in a population over time‚ it’s explained through descent with modification and natural selection. The findings from earlier thinkers all back this evidence up. Charles Darwin used evidence he found from research and studying the work of other scientists who studied fossils to support his claim that modern organisms are the descendants of ancestral species that were different from those of today
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Another big reason there is so much debate on evolution taught in schools is a big issue called time A researcher for the Gale TRC database stated in the article called Evolution that‚ “Like Darwin’s broad concept of evolution‚ his view of human origins has been accepted and confirmed by modern scientists‚ although the details of human evolution—such as when and where modern humans first arose—remain very much open to debate” (Gale‚ Evolution). The scientists say that they don’t know when or where
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Evolution of Whales Whales have evolved dramatically to adapt to life in the water as they started out as typical land animals. It has taken 12 million years for the modern whale to become as we know it. They had feet and legs suited for walking on land. They also had long skulls and carnivorous teeth‚ these whales evolved nostrils that were positioned further and further back along the snout. This trend has continued into living whales‚ which have a "blowhole" (nostrils) located on top of the
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Evolution and revolution as organizations grow Growing organization move through 5 phases of development‚ each of which contains a relatively calm period of growth that ends with a management crisis. Each developmental phase is strongly influenced by the previous one. Thus by knowing an organization’s development history it is possible to be more prepared for the next developmental crisis. These crises can be used in order to achieve future growth. Evolution- long periods of growth with no
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Continental drift has helped create the diversity we see present in modern day plants and animals. Through a process of speciation‚ the movement of the continents has had a generous role throughout evolution‚ effecting and distributing flora and fauna. The Earth’s continents were once one‚ a large supercontinent called Pangea that later separated into two smaller ones known as Gondwana and Laurasia. The separation and collision of continents has not only created some of the valleys and mountain ranges
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Co evolution is the evolution of two or more interdependent species‚ each adapting to changes in the other. It occurs‚ for example‚ between predators and prey and between insects and the flowers that they pollinate. (www.dictionary.com) This relationship between two species allows for their existence. They work together to ensure the survival of the other. The Bumble Bee Orchid (Ophrys bombyliflora) is a species of orchid that closely resemble a female bumble bee in both looks as well as smell
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There have been so many things discussed throughout these couple of months‚ everything from fossils‚ to Neanderthals‚ to evolution. From the beginning of evolution‚ our very start‚ our closest relative a chimpanzee‚ and modern man. We have gone through this journey and I have witnessed what the past looked like and made me appreciate my present. There are some incredibly specific items that need to be present in order for fossils to be procured‚ and they are only found in water‚ caves‚ or volcanoes
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