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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.
Contemporary Interests in Nutritional Biochemistry As newer techniques in biochemistry have emerged from time to time, these were of immense help in the understanding of ut
What is a burette and how is it used? A burette is a uniform-bore glass tube with fine gradations and a stopcock at the bottom, used particularly in laboratory procedures for a
Induction of Mesoderm in Amphibians Earlier you know that an event that precedes neural ectoderm induction in amphibians is the induction of mesoderm. Until 32 cell stage in
What are some prophylactic measures against ascariasis? The main prophylactic calculates against ascariasis are: efficient washing of vegetables and other foods; basic sanitar
Give three examples of cell structures which contain structural proteins. What is the other type of protein in a cell? (a) Cytoplasm, the cell membrane, memb
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Q How different is the amphibian heart from the fish heart? The fish heart has only two chambers, a ventricle and an atrium, and the blood that comes to it is purely venous.
Hypodermic-Subcutaneous Injection By this route the drug is mainly absorbed into the blood stream by way of the lymphatic drainage. Absorption is slower by this route
What is cellular regeneration? How is mitosis related to this process? Some tissues are able to regenerate when injured. The liver, for instance, regenerates when small pieces
Explain in detail about the term behavioural neuropsychology Behavioural neuropsychology has been explained as 'the application of behaviour therapy techniques to problems of o
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