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Due to random mutations occurring in bacterial DNA during replication of bacteria, a new strain of resistant bacteria is formed, which is capable of breaking down the antibiotic, so the infection is not c...

An answer starts by explaining the First-Past-the-Post (FPTP) system as electing members to one-member districts by single-plurality, in 650 districts ('constituencies' in the UK) across the country. FPTP...

First step in answering this question is to read it carefully and determine what exactly is being asked:-we are being asked to give the reasons for the effect of 'pH change' only, not any other factors, s...

To solve this inequality, we need to take steps to collect like terms on each side of the inequality. To start with, we can try getting all the numbers on one side of the inequality - on the left hand sid...

You need to remember some ‘rules’:if it has the ‘co-‘ prefix, the derivative will be negative (e.g. cos x -> -sin x)if it has the ‘-sec’ suffix, the derivative will only include itself (e.g. cosec x -&...