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!
Coevolutionary relationships between parasites and their hosts can be more complicated than between predators and their prey. As in the case of prey-predator relationship, one can expect hosts to evolve more effective defences against the parasite, and the parasite in turn can evolve to be more virulent. A balancing act has to be done here also as the parasite cannot afford to increase its own reproductive efficiency at the expense of the host. The death of the host would mean the death of the parasite before it could be transmitted to another living host. If the parasite has to be transferred from one host to another the parasite must evolve a lower degree of virulence so as not to kill the host. Successful host-parasite relationships are evolved on the dictum of "live and let live".
The well known Australian example illustrates the coevolution concept between rabbit hosts and myxorna virus parasite. European rabbits Oryctolagus cuniculus were first introduced into the Australian continent in the middle of the 19th century. In less than ten years the population multiplied into enormous numbers occupying a wide variety of environments in Australia from subalpine to subtropical zones. Towards the middle of the 19th century there were several hundred million rabbits. The rabbits had attained the status of a serious pest population. In order to control very effectively the population size, a search of natural enemies for the rabbits was made. Such a search reiealed that myxoma virus could multiply as an epizoite on rabbits and that mosquitoes could be the natural vectors for the mechanical transfer of the parasite.
The overall goal of BCC programs for diabetes mellitus is to promote behaviors that control diabetes mellitus and prevent complications. These include: Following treatment
MUSCLES - In eye orbit, eye ball is fixed by 6 skeletal muscles attached to 3rd, 4th & 6th cranial nerves (motor). 4 - straight or recti muscles are present. 2 - oblique
Define Steps To determine thermal resistance of a microorganism? Most food components and microorganisms obey first order reaction kinetics, which means that the destruction ra
This innovative, pacemaker-based approach to the treatment of patients with heart failure who have a wide QRS complex (>140 ms) on 12-lead ECG aims at providing electromechanical c
how can you find the coded genes for each piece of DNA?
What are the Technique of Operation in CPS? Percutaneous balloon valvotomy is the procedure of choice at any age. If this is not feasible, open surgical valvotomy is recommende
Define Prevalence and Incidence for anorexia nervosa? The disorder occurs most commonly in adolescent girls and young women, but adolescent boys and young men may be affected m
MICROBODIES Single unit membrane bound small spherical structures. Microbodies are structurally related to lysosome. On the basis of functions microbodies are of four typ
Q. What is Acid cleaning compounds? Acid-based cleaners like phosphoric acid and hydrofluoric acid are commonly used. They are very useful in removing minimal scales that
The pH of a solution of 1 M HCl is: Select one: a. 0 b. 0.1 c. 1 d. 10 e. negative 1
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