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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.
Trace the flow of blood through the systemic circuit (hepatic portal system) and the pulmonary circuit, beginning and ending in the left ventricle . You will be using named chamb
a) Describe with the help of a suitable example for each of the following terms : (i) morphallaxis (ii) epimorphosis and (iii) compensatory regeneration.
Categories of alloplastic implant materials The entire groups of possible alloplastic implant materials, regardless of their clinical applications fall into the following categ
Equine encephalomyelitis Encephalomyelitis or inflammation of the brain tissue and the spinal cord, can be brought about by different viruses. Eastern-, Western- and Venezuelan
Occurrence Pantothenic acid Pantothenic acid is a ubiquitous active principle occurring in free as well as in the bound form. In the bound form, pantothenic acid is incorpor
how many types of respiration are?define them also
name five animals in it''s trinomial nomenclature.
Rabies Rabies, a fatal zoonotic viral disease of dogs, cats, man and other mammals, causes an acute encephalomyelitis. The rabies virus belongs to the genus Lyssavirus in the
Explain Deformaties of the Cliest wall should be Noted a) Pectus carinatum (pigeon chest): may be associated with Marfan syndrome. b) Pectus excavatum: commonly seen in Marfan
Post-operative care of teeth After implant surgery, patients should be warned to expect: Some swelling and possibly bruising. Some discomfort which can usually be contr
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