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.
What is an example of animal coming from the phylum arthropoda?
Plants are the source of a large variety of biochemicals which are metabolites of both primary and secondary metabolism. But secondary metabolites are of much greater interest s
Which of the following serves as an actuating signal, or as part of an actuating signal, in a negative feedback system? A. Blood plasma levels of Glucose. B. Blood plasma le
What are the benefits of Soil testing Soil testing is done to assess the nutrient supplying capacity of the soil. The data obtained as a result of testing is useful for recom
Explain Functional property of WaterBinding/ Hydration Mode of action Proteins can help reduce formula costs as the proteins hold additional water. Food system
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Define Lipids - Tests for Presence of Exoenzymatic Activity? Lipids are also high molecular weight compounds. Enzyme lipases (esterases) cleaves the ester bond to form glycerol
Explain the Cardiac Cycle of human body? The different stages of a heart pumping cycle are referred to as follows: contraction of the ventricles is called systole, and relaxati
Ribosomes: are minute nonmembranous and dense spheroidal particles or granules. First observed by electron microscopy by palade 1955. Being only about 200 to 250 a in di
Define Patient Education for preventive strategies for food allergy? Patient education, therefore, is critical and should include: Allergen identification (e.g., how to
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