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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.
Q. Concerning their biological function what is the difference between meiosis and mitosis? The main biological function of mitosis is cellular multiplication a fundamental pro
What part do (a) nitrifying, (b) nitrogen-fixing and (c) denitrifying bacteria play in the nitrogen cycle? a) Nitrifying bacteria in the soil change ammonia and other nitrogeno
brief account on classification and general characters of protozoa
The male had a female first cousin (on his father side) who died from TSD and the female had a maternal uncle with TSD. Assume this trait is very rare. 1. Calculate the probabil
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Differentiate between glycogenesis and glycogenolysis. The synthesis of glycogen in liver and muscle is called glycogenesis. The breakdown of glycogen in the liver (glycoge
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define each term
Anthrax Synonym : Wool sorter’s disease Species affected : Cattle, sheep, goats, pig, horse and majority of the mammals. Fowls are resistant to anthr
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