Evolutionary Biology Chapter Summary

1. An understanding of chemistry is important for an understanding of biology because biology needs the models of chemistry to better describe life.

According to Darwin and his theory on evolution, organisms are presented with nature’s challenge of environmental change. Those that possess the characteristics of adapting to such challenges are successful in leaving their genes behind and ensuring that their lineage will continue. It is natural selection, where nature can perform tiny to mass sporadic experiments on its organisms, and the results can be interesting from extinction to significant changes within a species.

Talks, T. (2013, March 30). Genetically Evolved Technology: Luke Bawazer at TEDxWarwick 2013. Retrieved November 17, 2014, from https://www.youtube.com/watch?v=BljY3_i3gfw

According to Ms. Witsaman, evolution is not the theory of how life began, which is a common misconception nowadays, but the theory of how life has changed over time. Theories are predictions which are backed up by several evidences and supported by scientists. The evidences that scientists use now to prove include fossils, homologous structures, analogous structures, vestigial structures, embryology, biogeography, and biochemicals. Fossils are the remains of living things that once roamed the Earth. Homologous structure are structures shared by different organisms that have similar structure but different functions. Analogous structures are the opposite, they have similar functions but completely different structure.Vestigial structures are

Looking through a light microscope at a cell undergoing division, you see that the condensed

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The Evolution Lab simulates environmental situations to determine effects on evolution over periods of time. This lab experiments with the evolution of finches on two different islands over 100, 200, and 300 years. By manipulating parameters that influence natural selection, the effects that natural selection have on the evolution process can be studied.

Natural selection is the process in which heritable traits that make it more likely for organisms to survive and successfully reproduce become more common in a population over successive generations. Each of us individuals is specifically shaped and formed by our own genetic pattern. We inherit this pattern half from are mother and half from are father. The cause of this is the proximate cause that led it’s phenotype to ultimate causes. Much of we know today about evolution derives from the late great pioneer, Charles Darwin. Charles Darwin was an english naturalist that even from an early age was very interested in outdoor pursuits. Early in his prep career his father tried sending him to the University of Edinburg to pursue his medical

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The report is about the ecosystem and its effect on human health. That is, it is talking about the “escalating human pressure on global environment” (WHO, 2005).

Artificial selection – a breeder that selects desired traits for a species and then breeds that species to have those traits.

continuation in producing very high amounts of corn and different corn products which has only added to the corruption of the nitrogen cycle but also the agricultural system which has only negatively impacted the American diet. Pollan continues to support his claim of how the government supports and benefits farmers for their corn by bringing up that the US Department of Agriculture pays nineteen billion dollars to farmers each year for their continuation in the production of corn.

1. Did the construction of the phylogenetic tree based on the 14 living Caminalcules change the way you would group Caminalcules species in your taxonomic classification (chart)? What does this suggest about classification based on strictly of similarity versus evolutionary relationship?

1. The author chose to focus on 375 million year old rock because the transition from fins to necks and limbs occurred then. The scientists knew that any time later than this and they would find lots of animals with limbs. But if they searched earlier than this time then there are only fish without necks. When the fish were evolving they evolved necks before they evolved limbs so this was a good sign in chronology. Sedimentary rocks are the best types of rocks for fossil due to their gradual pressure and low amounts of heat. Sedimentary rock is also found in lake beds and streams, where fish and aquatic wildlife are most likely to live.

Natural selection is considered one of the most important processes for a variety of species and the environment which allows the fittest organisms to produce offspring. To prevent a species from extinction, it is necessary for them to adapt to the surrounding environment. The species which have the ability to adapt to new surroundings will be able to pass their genes through reproduction. Within the process of natural selection, it is possible for the original genetic make-up of a species to become altered. The team will report on the different processes of basic mechanisms of evolution, how natural selection results in biodiversity and why biodiversity is important to continued evolution. The sources of genetic