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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. What is the virus that causes flu? Why doesn't the body produce permanent immunity against that virus? How does the vaccine against flu work? Flu is a disease caused through
How intracellular cytoplasmic calcium concentration is maintained? Intracellular cytoplasmic calcium concentration is maintained by the following mechanisms: a) Limited entr
Results: The risk of isolated aortic valve replacement is 3-4 per cent. The long term survival for 5, 10 and 15years is 75 per cent, 60 per cent and 40 per cent respectively. The
Healing Events around Implants Healing of an implant is compared with the processes in normal bone healing or bone regeneration and with stable osteosynthesis.
What are plasmids? What is the importance of plasmids for the recombinant DNA technology? Plasmids are circular fragments of DNA that are accessories to the major bacterial DNA
Structure-activity relationships Structure-activity relationships may be useful to increase the weight-of-evidence or human health hazards identification. Where classes of comp
economic importance
Minor Criteria These are arthralgia, fever, prolonged PR interval, raised ESR and C-reactive protein levels. In some cases abdominal pain and epistaxis may occur. Other non spec
what are phylums included in aceolomates?
Spray-drying method Spray-drying is the common drying method in the production of ISP. The primary physical form of ISP in commerce, is that of fine powders. Structured form
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