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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.
Coiling of garden pea tendrils around any support is an example of: 1. Thigmotaxis 2. Thigmonasty 3. Thigmotropism 4. Thermotaxis Thigmotropism
Select the processes assist in the maintenance of high levels of dissolved solutes in the interstitial spaces of the kidney medulla? A. Net flux of sodium ions from intracellul
A student set up a potometer in the laboratory and measured the rate of movement of water in the capillary. An average of four readings gave a rate of 50mm per minute. The apparatu
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Surplus red blood cells, required to meet an emergency, are generally stored in what organ of the human body? Is it the: a) Liver b) Spleen c) pancreas d) Kidneys
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what are structural adaptation of flatworm to it''s enviroment /
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