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Evolution Should not be Equated with Progress - All of the changes, diversifications, and extinctions that happened over the course of life's history are the patterns of overall evolution. Evolution of life has been taking place for about 3.8 billion years of time. When we view macroevolu..

The monozygotic (identical twins) develop from a single zygote by separation of the two blastomeres after the first cleavage. Therefore, they have similar genetic traits, except for rare chances of mutation. Fraternal twins develop from different zygotes. Therefore, they are no more alike than othe..

Quantities are said to be in Arithmetic progression when they increase or decrease by a common differenc..

Harmonic Progression (H.P.) - A sequence of numbers is said to form a harmonic progression if their reciprocals form an arithmetic progression..

Equation for a Progressive Wave - The simplest type of wave is the one in which the particles of the medium are set into simple harmonic vibrations as the wave passes through it. The wave is then called a simple harmonic wave. Consider a particle O in the medium. The displacement at any i..

The simplest type of wave is the one in which the particles of the medium are set into simple harmonic vibrations as the wave passes through it. The wave is then called a simple harmonic wav..

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Laws of Chemical Combination - The study of reactions is one of the important areas of Chemistry. There are many aspects of a reaction like the rate of reaction, energy absorbed or evolved, mechanism of a reaction that can be evaluated only with weight and volume relationships. A stu..

The graph shows the variation of stopping potential with frequency in accordance to the above equation. The above experimental study can be summarized as follows: Before that, let us recollect some of the parameters and their symbols. V 0 - Stopping potential u 0 - Threshold potential f -..

The common features show that an evolutionary process exists and there is a link between the different group..