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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.
DISORDER S OF FEMALE REPRODUCTIVE SYSTEM - (i) Sterility (ii ) Menstrual irregularity - This may be amenorrhea (absence of M.C.) or excessive bleeding (
Explain the role of calcium ions, troponin and F-Actin during contraction in striated muscles of humans?
Types of Community On the basis of size and degree of relative independence communities may be divided into two types: i) Major Community: These are large-sized, well org
Changes In Gluten Proteins During Dough Formation Initially, gluten is formed when flour and water are mixed together. The proteins in the flour, glutenin and gliadin cross l
what is the technical term used for the animals that eat yellow grass?
Wastes are classified into following categories: 1. Biodegradable wastes: The waste materials that can be degraded by micro-organisms are called biodegradable wastes. Th
Based on the scientific name. Streptococcus agalactiae what morphology would you expect these cells to have?
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What are the parasympathetic neurons Patient A has a disease that has destroyed half of the alpha-adrenergic receptors on each of the smooth muscles that control the diameter o
Q. Why is maternal milk important for the immune protection of the baby? Besides being nutritionally important like maternal milk participates in the defense of the baby agains
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