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

Describe infectious agents, Describe Infectious Agents ? Recently there...

Describe Infectious Agents ? Recently there has been increasing interest in the relation between chronic low grade systemic inflammation and mortality of coronary artery diseas

Which of substance are microtubules, Q Which Of substance are microtubules ...

Q Which Of substance are microtubules made and In which structures and cellular processes do microtubules participate? Microtubules are made of consecutive dimers of the protei

Class Pisces, need different types of information about fishes and their pi...

need different types of information about fishes and their pictures

Haccp plan, HACCP  Plan  :  The written document which  is  based upon the...

HACCP  Plan  :  The written document which  is  based upon the principles  of  HACCP  and which delineates  the procedures  to  be  followed.

Uterine torsion, Uterine Torsion Incidences of uterine torsions in cat...

Uterine Torsion Incidences of uterine torsions in cattle and buffaloes are not common. However, they are very common in heavy breeds and buffaloes and animals in slopy terrain

Tertiary prevention -community mental health programme, Tertiary Prevention...

Tertiary Prevention: In tertiary prevention, emphasis is placed on reducing disability resulting from illness. Tertiary prevention often means long term care. Disability may r

What is the significance of magnesium for plants, Q. What is the significan...

Q. What is the significance of magnesium for plants? What are the other major biological functions of magnesium? Magnesium is basically vital for plants because it is part of t

Stems transport liquids, Stems transport liquids (a)  Cut about 2 cm fr...

Stems transport liquids (a)  Cut about 2 cm from the end of stems of celery and place them in cold water for about an hour to freshen. Next place the stems in dishes having red

Obelia, why is obelia considered to of special interest in Zoology as an an...

why is obelia considered to of special interest in Zoology as an animal showing an intermediate grade of organisation?

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