Free Species Essays and Papers

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  • Concept of Species

    1240 Words  | 5 Pages

    Concept of Species Over the last few decades the Biological Species Concept (BSC) has become predominately the dominant species definition used. This concept defines a species as a reproductive community. This though has had much refinement through the years. The earliest precursor to the concept is in Du Rietz (1930), then later Dobzhansky added to this definition in 1937.But even after this the definition was highly restrictive. The definition of a species that is accepted as the Biological

  • Exotic Species

    526 Words  | 3 Pages

    that bringing in just a few exotic species of the same kind into the United States could throw of the whole food chain? We may not pay much attention to it, but we Americans are the ones most responsible for the disturbing of the ecological balance of the world by bringing in new plant and animal species. These exotic species take away what is needed for the native species and very often it is the native species that become threatened. The introducing of exotic species into a different environment usually

  • Endangered Species

    1073 Words  | 5 Pages

    altered and modified, but these tend to happen at a gradual pace. This allows most species to adapt to the changing environment, where only a slight impact may take place. However, when changes occur at a fast pace, there is little or no time for an individual species to react and adjust to the new circumstances. This cause disastrous results, and for this reason, rapid habitat loss is the primary cause of species becoming endangered. Nearly every region of earth has been affected by human activity

  • Bacterial Species

    2089 Words  | 9 Pages

    Introduction and definition of a Bacterial Species The field of biology has been a challenge for over four hundred years. An essential part of this problem would be the field of Microbiology. In Microbiology, there is application in which we group organism into different species. This application is called taxonomy. Taxonomy is the practice and science of classification of different organism in the same domain. With taxonomy, we see a short glance on how species are categorized but what about the other

  • minid Species

    1984 Words  | 8 Pages

    minid Species The time of the split between humans and living apes used to be thought to have occurred 15 to 20 million years ago, or even up to 30 or 40 million years ago. Some apes occurring within that time period, such as Ramapithecus, used to be considered as hominids, and possible ancestors of humans. Later fossil finds indicated that Ramapi Hothecus was more closely related to the orang-utan, and new biochemical evidence indicated that the last common ancestor of hominids and apes occurred

  • The Mullet Species

    1352 Words  | 6 Pages

    The Mullet Species The mullet is no longer just a hair-cut, it has spawned into a species that fits in the lower hierarchy of society. A mullet, by definition, is actually Any of various stout-bodied, edible fishes of the family Mugilidae, found worldwide in tropical and temperate coastal waters and some freshwater streams. What kind of lifestyles do the mullets live and what kind of stereotype do they develop from it? There’s more to a mullet than just a definition. The traditional hair style of

  • biological species concept

    1488 Words  | 6 Pages

    Biological Species Concept (BSC) What are biological species? At first glance, this seems like an easy question to answer. Homo sapiens is a species, and so is Canis familaris (dog). Many species can be easily distinguished. When we turn to the technical literature on species, the nature of species becomes much less clear. Biologists offer a dozen definitions of the term "species". These definitions are not fringe accounts of species but prominent definitions in the current biological literature

  • Morpholgical Species Essay

    1126 Words  | 5 Pages

    a. Morpholgical species concept is based on the shape and structure of character traits on the species. This is applicable to both asexual and sexual organisms and is best when little is known on gene flow for the particular species. By looking at the three different frogs, the SV’s seem to be the same length. Therefore, the determination of different species must be done by looking at the leg length. The leg length is the feature that is morphologically different among the frogs. Looking at the

  • On Tanabe's Logic of Species

    3184 Words  | 13 Pages

    On Tanabe's Logic of Species Tanabe Hajime (1885-1962), another pole of the so-called Kyoto-School of Philosophy of modern Japan, attempts to construct a dialectical, triadic logic of genus, species and individual as a creative synthesis between Eastern and Western philosophy. Although the formal pattern of his method is influenced by the Hegelian dialectic, the way of his thinking is rather prevailed by Kantian dualism. This makes a sharp contrast to his mentor Nishida Kitaro, whose logic of

  • the origins of species

    950 Words  | 4 Pages

    Charles Darwin’s The Origins of Species is still held in high regard 155 years after it was published. To date it is still the principle model for our understanding of the idea of ‘natural selection’ and the theory of evolution. It is as important then as it is today, as The Origins of Species exemplifies how scientific inquiry offers the tools for the ability to obtain knowledge, the truth and discovery. It also changed the way we think about nature and our place within nature. It also stands as