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Structurally these molecules are very similar with a few differences. They are both made up of monomers called nucleotides. Nucleotides simply refer to nitrogenous bases, pentose sugar together with the p...

The Prime Minister has several powers within his jurisdiction, such as the power of patronage. This involves the appointment of judges and civil servants, which is important as it means they can decide ov...

It depends on what you are describing. If talking about an activity which you undertook regularly and for an unspecified amount of time, you would use the imperfect tense. Eg. "Cuando era pequeña, to...

Firstly, multiply eq.1 by 2, to obtain: (eq.3) 2x + 6y = 20Next, subtract eq.2 from eq.3 to obtain: (eq.4) 5y = 15Next, divide eq.4 by 5 to obtain: y = 3Now substitute y = 3 into any of the previous equat...

(i) Let f(x) = A/(x-1) + B/(x²+9). Multiplying through by (x-1)(x²+9) we get x²+9x = A(x²+9) + B(x-1). By substituting x=1 in to eliminate B, we find that A=1 ,...