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Darwin put fort the notion of the survival of the fittest. How do we define 'fittest'? The answer usually given is those who survive. So you can readily see that this is a circular agrument and doesn't really help us understand what really happens following natural selection quite clearly. The idea of fitness as a matter of survival will not do. Therefore in the course of the development of what we have earlier referred to as the modern synthesis the notion of fitness was related to the ability of the individual to maximise the number of progeny left in the next generation. In other words the notion of fitness was translated into reproductive success. Given the idea of fitness as being measurable in terms of reproductive success we can now go back to basic tenets of Darwinism. The first of the five observations mentioned therein was the tendency on the part of living organisms to reproduce: In an exponential manner. We noted that the consequence of this is competition for available resources which results in "the survival of the fittest" Clearly, therefore. in3terms of reproductive ability nature is truly prodigal.
What STRUCTURAL features do these three organisms have in common in terms of a) excretory systems b) respiratory systems c) circulatory systems and d) nervous systems ? The species
CEL L THEORY Proposed by Mathias Jacob Schleiden, 1838 (Jerman Botanist), Theodore Schwann, 1839 (Jerman Zoologist) It consists of 5 fundamental facts - (i) Body of livi
Define the HTST Pasteurization Method? Rapid, high pasteurization is characterized by a pasteurization time in the order of seconds and temperatures of about 85° to 90°C or mor
What are the Results of Chronic Pulmonary Thromboembolism? Results : The reported mortality is between 5 and 24 per cent. On follow-up, the six-year survival in the best ce
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It is the DNA representing, the genome of virus that has been included into the DNA of the host.
Explain the process by which the kidney varies the volume and concentration of urine
Explain what is Molds ? Zygomycota, or molds, are a type of fungus made of filamentous hyphae that grow on decomposing material. The molds actually aid in the decomposition pro
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