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How is an electrical impulse transmitted through the heart?

Contraction of the heart is myogenic meaning it initiates from within the heart muscle itself (myo=muscle, genic= created). Therefore, no extra nerves need to signal the heart t...

RZ
Answered by Rebecca Z. Biology tutor
18807 Views

Factorise and solve x^2 - 8x + 15 = 0.

The easiest way to solve this problems it via trial and error. For any quatdratic (ax2 + bx  + C = 0), the coeficcent of x, (i...

DM
Answered by Dominic M. Maths tutor
5255 Views

Don't know how to write a good essay?

I am a History Undergraduate at Durham and studied History A Level at City of London School for Girls, giving me a pretty good idea of how to both write, and teach others to write a good essay. I won t...

HC
Answered by Hannah C. History tutor
3715 Views

Don't know where to start?

I have experience in helping people start their personal statements from scratch, as well as knowing how to put the final touches to a solid PS. I myself have had personal statement advice and tutoring...

HC
3782 Views

Which medical schools should I apply for?

There are significant differences between medical schools in what they offer, teaching styles and entrance requirements so it is important to use your 4 choices wisely. There are 3 main factors to cons...

RZ
2944 Views

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