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Darwin while evolving the concept of natural selection laid emphasis on competition among individuals belonging to a species, that is intraspecific competition. Here the individuals compete for almost identical requirements from the environment. Competition between individuals belonging to different species, that is interspecific competition is also observed in nature. In the following subsection we shall discuss the essential differences between the two types of competition, and subsequently highlight the role of natural selection in evolving coadapted colnmunities of closely related species.
REHABILITATION OF CARDIAC SURGICAL PATIENTS The goal of nursing care of cardiac surgical patient is to make the patient to come back to his normal activities. Cardiac surgica
Q. What is the function of the pupil and of the iris? The iris works like the diaphragm of a photographic camera since it has muscles that relax or contract varying the pupil d
Do beings of the class Reptilia perform gas exchange in the same way amphibians do? These beings do not have permeable skin so they do not make cutaneous respiration such as a
Ribonucleases and deoxyribonucleases These enzymes are responsible for the degradation of dietary nucleic acids. Ribonucleases and deoxyribonucleases secreted by the
The biosphere is composed of all living organism. This sphere includes all the microorganism, plants and animals of earth. In fact biosphere involves interaction of living beings w
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Explain the Economics in Nutrition? We mentioned earlier that nutritional problems affect the productivity of the individual, which, in turn affects the productivity of the nat
a) How does the Hardy- Weinberg's expression (p²+2pq+q² =1) Describe that genetic equilibrium is maintained in a population? (b) List any two factors that can disturb the ge
Q. Qualitative and Quantitative Analysis of Colour? Primarily, two types of analysis are carried out for food colours - qualitative and quantitative. The qualitative analysi
The acidity and alkalinity (pH) of an environment has a strong influence on the activity and stability of macromolecules such as enzymes. These enzymes play an important role durin
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