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There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

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Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..

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Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..

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Human intelligence provided the means to utilize abstract ideas and implement reasoning. This tutorial takes a further l..

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Cell Respiration

Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..