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There is genetic diversity within the population. Random mutation can occur, forming new alleles of a gene. Though many mutations are harmful, in certain environments the new allele may benefit its posses...

This type of short writing question is present in all Spanish AS and A-level papers and the ideal answer for such a question is typically 2-3 sides long. The main goal is to creatively try and show as man...

的 is a character that implies possession, but can also be used with disyllabic adjectives (adjectives that are two characters long.) For example: 红花 = red flower. 的 is not needed here because the word for...

Measure words are characters that are used when describing how many there are of a certain object.       E.g. if you want to say 'five books', you have to say ‘五本书 not ‘五书’. Therefore, 本 (the measure word...

An increase in the ROI(rate of interest) would increase the reward for saving money and hence increase consumers' incentives to save. This would reduce the levels of consumption in the economy and hence r...