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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.
Hydralazine is a potent arteriolar dilator and markedly increases cardiac output in patients with congestive heart failure. However, as a single agent, it has not been shown to imp
Ultrasonic and sonic vibrations Cells of all types can be destructed by intense sonic and ultrasonic vibrations generated by magnetostrictive oscillations or peizo electric cry
Vegetative Development - Morphogenesis This term is coined for the process leading to and determining the form and structure of organs. It is used mainly by experimental morph
What is the ranges of tolerance and performance optima? Ranges of Tolerance and Performance Optima : When it comes to physical factors or resources, most species are able to
What are the main negative ions found in living beings? The major anions found in living beings are the chlorine anion (Cl-), the phosphate anion (PO4--), the bicarbonate anion
karaka scientific name
Colluvial These are the soils formed from the material transported by the pull of gravity. Fragments from cliffs or steep rocky slopes become dislodged from time to time and ma
Q. Why is it dangerous to talk while eating? If a person talks when eating, food may be inhaled into the lungs. Generally after food is swallowed, it passes into pharynx and th
Q. Illustrate the tyndallisation? John Tyndall devised a process of sterilisation by steaming for a few minutes at 100 o C on 3-4 successive operations separated by 24 hour in
Why does each skeletal muscle need an antagonistic partner? Because muscles can only contract and relax, each skeletal muscle requires an antagonistic partner to extend it afte
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