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An action potential arrives at synaptic knob. This causes voltage-gated Ca2+ ion channels to open, resulting in an influx of Ca2+ ions diffusing into the synaptic knob. This then causes vesicles containin...

def fib(n):  if n <= 1:    return n  else:    return(fib(n-1) + fib(n-2))
This is the code for a very basic version. This coud be used to explain how recursion works thanks to a relatively easy ex...

Annual return is £75 000 – £28 000 + £4 000 = £51 000 Return on investment = annual return x 100 = £51 000 x 100 = initial cost £220 000 Answer = 23.2% or 23%

(x + 2)²+3

Let's remember what applying a modulus to any number actually does. Applying the modulus to a number just gives us back the positive version of that number- if it is positive, we get back itself, and if i...