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The fact that the grains are well rounded suggests that they have been subjected to a relatively high level of erosion (due to the smoothing of sharp edges). From this, we could interpret that the sedimen...

Natural selection is able to occur due to variation within a species. Individuals with certain mutations/alleles may be better adapted to their environment than other members of their species, meaning the...

A characteristic that is determined by genetic factors is a feature which is coded for in a person's genetics, inherited from their parents, as opposed to environmental factors which are caused by the con...

By noticing the the numerator (x^2 + 1) is similar to the derivative of the denominator (x^3 +3x +2) you can integrate the function by using natural logarithms, to form the logarithm ln( x^3 +3x +2). Howe...

Let’s take this sentence from Virgil's Aeneid, Book 2 : 'tempus erat quo prima quies mortalibus aegris incipit et dono divum gratissima serpit'. Let's analyse each ending. First, sort th...