Christopher J Paradise (505 results)

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Paperback. Condition: New. This book describes how evolutionary history is studied using several well-known examples and also using evolutionary trees. Evolutionary trees are analyzed and used to explain adaptive radiations of orchids and the diversification of bats over geologic time. Evolutionary trees and genetic evidence is used to infer when and from what ancestors terrestrial plants evolved and invaded land. Specific adaptations of early land plants led to the evolution of terrestrial plants and their success on land. Evidence about the ancestors and habitats of humans is used to infer and analyze the evolution of the human family tree, whose populations were subject to the same forces of evolution to which other species are subject. Human evolution was not linear, involved offshoot species that did not survive, and took many thousands of years. In contrast, evolution can be seen in just a few years or less in other examples, and analysis of the evolution of mechanisms of pesticide resistance in insects will be used to illustrate this rapid evolution.…

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Paperback. Condition: New. Animal behavior includes the exchange of non-heritable information between individuals of the same species. Animals exchange information for a variety of reasons, including mating, defense, and cooperation, and all of these situations will be discussed. This book will describe the functions of communication and information transfer between organisms and explain how animals communicate and find each other through use of different signals. The costs and benefits of using various signals will be evaluated, as will the costs and benefits of living in groups. Playback experiments and the comparative method are approaches used for understanding and interpreting signals used by organisms to communicate information to other members of the same species. Plants also communicate information between individuals, often for purposes of species identification during mating. Female reproductive structures in plants recognize pollen from members of the same species. Finally, the commonalities and differences between animal and plant communication will be identified.…

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Paperback. Condition: New. Once the first cell arose on Earth, how did genetic diversity arise if DNA replication and cell division generate exact copies? The answer is that neither process is perfect and that changes do occur at each step. Some changes are small and subtle while others are large and dramatic. As DNA mutates, evolution of a population takes place. But when can someone determine if a single species has changed enough to be considered two separate species? How is a species defined and is this definition useful in the real world? Real biological data will be examined to confront and answer these questions. Finally, the book examines an example of evolution that takes place in humans on a regular basis-the mammalian immune system. White blood cells evolve rapidly to confront any substance that enters a body and is perceived as a threat. With each exposure, these cells get better and better at neutralizing the threat.…