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

Implant surface affect osseointegration, Implant surface affect Osseointegr...

Implant surface affect Osseointegration Surface topography is critical as rough surfaces produce better bone fixation as compared with smooth surfaces, and osteoblast like cell

Do the arteries that carry blood from the heart to the lungs, Do the arteri...

Do the arteries that carry blood from the heart to the lungs have arterial or venous blood? What happens to the blood when it passes through the lungs? Arteries of the pulmonar

Explain endonucleases, Explain Endonucleases Endonucleases  are  nucle...

Explain Endonucleases Endonucleases  are  nucleases present  in  the pancreatic juice like RNAase  andDNAase. These hydrolyze internal phosphodiester bonds which are located m

What is tricuspid valve annuloplasty, Q. What is Tricuspid valve annuloplas...

Q. What is Tricuspid valve annuloplasty? It depends upon the cause of tricuspid regurgitation. Specific therapy is directed towards the particular cause of pulmonary artery hyp

Coarse fish reach or lowland course zone, Coarse fish reach or lowland cour...

Coarse fish reach or lowland course zone This zone corresponds to the lower course of the river. Here the river is deep and slow moving. Its sluggish flow results in the depos

Membrane oxygenators-type of oxygenators , Membrane Oxygenators: They are...

Membrane Oxygenators: They are more physiological and are similar to natural lungs. There is separation of blood and gas by membrane across which gas exchange takes place. There

Define the medical status of the patient - implant, Medical status of the p...

Medical status of the patient Conditions like osteoporosis, history of radiotherapy, use of bisphosphonates which can affect the success of the treatment should be considered b

Which terrestrial vertebrate group is extremely rare, Which terrestrial ver...

Which terrestrial vertebrate group is extremely rare in deserts? Amphibians are terrestrial vertebrates extremely rare in desert environments (although there are a some species

Which of these are best and why, Suppose you were presented with two 40X le...

Suppose you were presented with two 40X lenses to use on your microscope, lens A had a numerical aperture of 0.56 and lens B had a numerical aperture of 0.75. Which is best and why

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