Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
In the preceding section we emphasised the fact that cvolution or the continuous adaptations to the environment can take place only when pheiiotypes exhibit variability. In the absense of variability, the chances arc that existing living organisms would become extinct since with the change in the environment these organisms would die without leaving progeny. Fortunatcly in living systems mutations and recombinations generate the required variability. However, organisms often strive to arrive at populations which are more or less uniform. This is possible because selection process acts in such a way that a certain degree of uniformity of phenotype is imposed among individuals of n population. If an individual were to be vcry different in some way from thc rest of the population. he would be less well adapted to the environment as compared to other members of the population and therefore unable to compete successfully with them. However, in a continuously changing environment, a slight phenotypic variability should be maintained in a population. In a changing environment no phenotype remains optimally adapted for long. This is the precise reason why variability needs to be generated continuously in a population and used to develop adaptations in the way Darwin suggested. We shall look into the mechanisms that generate variability.
Difference between Blind Spot and Yellow Spot - Blind Spot Y ellow spot 1. It lies litte away from yellow spot. 2. No pi
Define interaction of Vitamin C with Riboflavin? The two coenzyme forms of riboflavin are FMN and FAD. They are found in a large number of systems which function in the metabol
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Why is it important to be familiar with the laboratory apparatus and their uses? If you do not use instruments or lab apparatuses correctly (or use an apparatus for something i
Define Tertiary Prevention- preventive strategies for food allergy? Tertiary Prevention: Targets the control of factors that cause symptoms. This strategy would be appropriate
what is the term used for study of sponges,protozoa,colentreta,molusca,fish,aves,mammal
What is the phenomenon of apical dominance in plants? How can it be artificially eliminated? Apical dominance is the phenomenon by which high (over the positive range limit) au
What was the Oral Status of the Patient It is imperative that the patient carry out a strict oral hygiene regimen as dental plaque is one of the main factors that leads to impl
Explain about the Ascomycota - Fungi? Ascomycota - Ascomycetes or sac-like fungi have septate mycelium. These are called so because sexual reproduction involves the formation o
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd