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An action potential is the signal neurons use to communicate with each other. It is caused by the rapid opening of sodium channels and influx of sodium ions. Because at rest the inside of the neuron is ne...

To solve this question you need to find a value of x and y which satisfies both of the equations. Simultaneous equations can be solved by three methods: substitution, elimination, and graphically. We will...

Let the lines be:

r₁ = (a, b, c) + t(d, e, f)

r₂ = (g, h, i) + s(j, k, l)

Since t and s above are variables and the rest of the letters are constants, the only w...

the perfect tense, le passé composé, expresses completed actions in the past. It is composed of -the auxiliary verb (avoir ou être) conjugated in the present tense - followed by the past participle of the...

Writing an essay - whether it's for coursework submission or practice for an exam - can seem really really overwhelming sometimes. It's not as hard as it seems, if you know where to start though!

F...