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 block you learnt the Darwinian premise of natural selection based on certain facts and deductions thereof. You would have noticed that one of the foundations for the concept of natural selection relates to competition among the individuals belonging to the same species - the intraspecific competition. You may also recall that intraspecific competition involves two components - (1) the individuals belonging to the same species compete among themselves for thc same requisites from the eilvironment which results in physical competition, including the competition for mates and the individuals belonging to a species may compete as to which of them leaves behind a major share of descendents in the future populations. The second type of competition is more subtle, by which is meant that individuals do not compete directly or in any physical way. The success of the second type of competition is measured in terms of the survival of offsprings, and therefore alleles in the next generation. You might have by now deduced that the two types of competition are interrelated. Success in the first type of competition known as ecological intraspecific competition is a prerequisite for success in the second type of competition namely reproductive intraspecific competition. It does not mean that ecological success always ensures reproductive success, for ecologically successful individuals may be sterile; but ecological success is always necessary to achieve reproductive success. We may then summarise that intraspecific competition results in adaptations to a given environment and this helps to perpetuate the genotypes of successful individuals generation after generation.
A 21-year-old woman presents with a 3-month history of malaise, joint pain, weight loss, and sporadic fever. Her temperature is 38°C (101°F). The serum antinuclear antibody (ANA) t
Motor nerves : Nerves which carry impulses from brain or spinal cord to effector organs are called efferent or motor nerves. Stimulation of motor nerves makes the muscles to contr
Renal insufficiency Antimicrobial drugs excreted through the urinary tract may be toxic for patients with renal insufficiency if they are given in usual therapeutic doses, bec
Explain the Small Intestine? The small intestine is made up of three sections, the duodenum, the jejunum, and the ileum. Bile from the liver and pancreatic enzymes are released
Define Nutritional Requirements for Extreme Environments? Human beings have been able to survive and work under extreme environments of almost all regions of the earth, from po
Vesicular exanthema Vesicular exanthema of pigs closely resembles foot-and-mouth disease in these animals. The virus causing the disease belongs to the genus Calicivirus in the fa
Erythema migrans Oral antibiotic therapy shortens the duration of the rash and generally prevents development of late sequelae. Among the 3 drugs used for this indication, onl
Q. What is extracellular digestion? Extracellular digestion is so that in which food breaking into utile molecules that can be internalized by the cell is done in the extracell
Define effect of Protein excess during pregnancy period? It is not advisable to recommend protein supplements. Reports in the literature indicate that high-protein supplements
Disorder of Platelets - Purpura Purpuras are bleeding disorders characterised by petechiae and ecchymosis which may be due to deficiency in either, the number or quality of
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