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

Introduction to ecology, Ecology is a interdisciplinary branch of science t...

Ecology is a interdisciplinary branch of science that deals with inter relationship between living organism and their environment. The term ecology (from greek, oikos-meaning ho

Explain the digestion of carbohydrates, Explain the Digestion of carbohydra...

Explain the Digestion of carbohydrates? You are aware that 60-70% of energy is supplied by the dietary carbohydrates which are primarily present as polysaccharides (starch) fol

What is diarrhoea, What is diarrhoea? Diarrhoea is characterized by th...

What is diarrhoea? Diarrhoea is characterized by the frequent evacuation of liquid stools, usually exceeding 300 ml, accompanied by an excessive loss of fluids and electrolyte

Explain ophthalmic, Ophthalmic Data are limited on the effectiveness of...

Ophthalmic Data are limited on the effectiveness of antimicrobial prophylaxis for ophthalmic surgery, but postoperative endophthalmitis can be devastating. Most ophthalmologist

Role of private sector in health care, Role of Private Sector in Health Car...

Role of Private Sector in Health Care One of the biggest policy challenges for the government is to decide on the appropriate areas and a suitable policy framework for having

Explain the nutritional and functional role of sulphur, Minerals :-  Sulfur...

Minerals :-  Sulfur Food Source       Widely distributed  Nutritional Functional role Essential nutrient: A constituent of the essential amino acids methionine and

RESPIRATION, I HAVE TO MAKE A ASSIGNMENT ON RESPIRATION

I HAVE TO MAKE A ASSIGNMENT ON RESPIRATION

PHYLUM MOLLUSCA, How we attempt a question of phylum mollusca?

How we attempt a question of phylum mollusca?

State in brief about the zinc, State in brief about the Zinc    It is c...

State in brief about the Zinc    It is concerned with the functioning of sulphydryl compounds, such as cysteine, in regulation of redox potential within the cell. Zinc is somet

Define iron requirements of infants, Define Iron requirements of infants? ...

Define Iron requirements of infants? The maintenance needs for all age groups is 14 mcg/kg body weights. For infants and preschoolers, iron needs for growth and' expansion of b

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