Natural selection, Biology

Assignment Help:

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.


Related Discussions:- Natural selection

Differences between the male gametes and the female gametes, State the diff...

State the differences between the male gametes and the female gametes with regard to (a) their size; (b) their structure, (c) their relative numbers.   (a

Functions of kidney, FUNCTION S OF KIDNEY - 1.      Excretion of nitro...

FUNCTION S OF KIDNEY - 1.      Excretion of nitrogenous wastes. 2.      Maintenance of water balance or osmoregulation. 3.      Acid base balance or regulation of pH.

What is the role of radiographic evaluation, What is the role of radiograph...

What is the role of radiographic evaluation in implant treatment? Radiographic examination is very different with implants than with teeth. Radiographs are frequently used in i

Amine and the carboxyl groups, Q. Do the amine and the carboxyl groups atta...

Q. Do the amine and the carboxyl groups attached to central carbons participate in the union between amino acids? Yes. The nitrogen of the amine group of one amino acid binds t

Determine the term - coupling factors, Determine the term - coupling factor...

Determine the term - coupling factors The coupling factors, also called the F l ATPase, present on the inner mitochondrial membrane facing the matrix side, are a very complex a

Explain the neuritic type of infantile beriberi, Explain the neuritic type ...

Explain the neuritic type of infantile beriberi? It is also referred to as Wernicke korsakoff syndrome or cerebral beriberi. It shows typical manifestations of peripheral neuro

Planning for evaluation, PLANNING FOR EVALUATION: The need for clearly...

PLANNING FOR EVALUATION: The need for clearly defined objectives for the evaluation process, analysis of  the need for it, systematic measures for accomplishing its purpose an

Change in structure of a protein, Q. Is it expected that a change in the pr...

Q. Is it expected that a change in the primary, in the secondary or in the tertiary structure of a protein will produce furthermore functional consequences? Any change of the p

Define reagents required and methodology for mucic acid test, Define Reagen...

Define Reagents Required and Methodology for Mucic Acid Test? -   Sugar solution -   Conc. Nitric acid Methodology Take about 50 mg of sugar in a test tube. Add 1 ml

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd