number of families (Sepkoski‚ 1986) and an estimated 96% extinction at the species level (Raup‚ 1979). Oceanic life suffered the most but terrestrial life forms were also greatly affected. There was a 77% reduction in the number of tetrapod families (Maxwell and Benton‚ 1987). All major groups of oceanic organisms were affected with the crinozoans (98%)‚ anthozoans (96%)‚ brachiopods (80%) and bryozoans (79%) suffering the greatest extinction (McKinney‚ 1987). The end of
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For this week’s reflection assignment‚ we were presented with several videos. Of the four‚ I chose to watch the one titled "Tedx: De Extinction: a game changer for conservation biology. The featured presenter is Mr. Stanley Temple‚ a noted conservation biologist who has experience in the preservation of several species. The video was posted to youtube.com by Tedx Talks. Mr. Stanley begins his lecture by stating in his early childhood he was interested in the conservation of animals. This was the
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Preventing a Species from Extinction Whether should people prevent a species from being extinct or not seems not a controversial topic. Nowadays‚ a lot of people will agree on protecting endangered species. However‚ most people still have some questions. Why should people prevent a species from extinction? Is it Important? What can humans get from protecting rare species? We can answer these questions from three aspects. People should prevent a species from extinction because humans have the responsibility
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The Extinction of Bees Being stung by a bee isn’t exactly the best feeling in the world. However‚ killing that bee that causes your arm to swell up for a few hours could lead us one step closer to a world without them‚ and a world without us. The truth is‚ bees provide much more than most people would ever care to think about. The foods that we eat‚ the environments we enjoy and the medicines so many of us so badly need are only able to be provided because of pollination. In reality‚ despite how
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Mockingbird‚ the importance of defending and protecting the defenseless is very prominent throughout the entire story. To Kill a Mockingbird is about two children‚ Jean Louise Finch‚ who is referred to as Scout‚ and her older brother Jeremy Atticus Finch‚ who is referred to as Jem. They both live with their father‚ Atticus Finch‚ in the small‚ dull town of Maycomb. The novel showcases the events and timeline of Scout and Jem’s journey into maturity‚ as they learn about the importance of protecting the
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There have been many investigated causes for this‚ but the scientific community cannot decide on one for sure. This is due to lack of evidence for each theory. The most common current theories about the extinction are over hunting‚ climate change and disease. One of the possible causes of extinction of the megafauna is climate change. This is predicted as the megafauna all around the world became extinct close to the end of the last ice age and just and the climate was getting warmer (Florek‚ 2015)
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hypotheses put forward for the mass extinctions at the end of the Permian and Cretaceous (KT) Periods. A mass extinction is an event in which at least 25-75% of species in the global environment are eradicated in a short period of time. Where as a regional extinction event is when the extinction is confined to a specific zone. Five mass extinctions have occurred throughout time‚ two of the most well known of these are the Permian and Cretaceous extinction events. There are several hypotheses
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Strength in Struggles Unfortunate circumstances form children into adults. Scout Finch‚ an adventurous tomboy from the novel To Kill a Mockingbird‚ by Harper Lee‚ and Saul Indian Horse‚ a native boy from Richard Wagamese’s novel Indian Horse‚ both prove that to overcome challenges you must have faith‚ resilience‚ and courage; Scout uses challenges to learn but Saul triumphs as he uses his past experiences to mature and develop a new sense of self. For instance‚ Saul’s superior growth can be proven
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In your mind what does courage look like‚ and how is it embodied by people? Different characters embody many forms of courage in the book To Kill A Mockingbird by Harper Lee. The main character of the book is a southern girl named Jean Louise Finch‚ and she lives near a house that the characters call the Radley house. Jean Louise believes that a mysterious man nicknamed Boo Radley is being held in the Radley house‚ and as a youthful girl this frightens her and the other characters. In addition to
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jailhouse It takes courage for Atticus Finch to go against people’s beliefs in order to do what he believes was morally right. The racist views of the town are against Atticus defending Tom Robinson‚ a black man accused of raping a white woman‚ and Atticus is often discriminated against for not agreeing with them. His children‚ Scout and Jem‚ also feel the hatred of others against them because of what their father’s beliefs are. "But Mrs. Dubose held us: "’Not only a Finch waiting tables‚ but one in the
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