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What is the difference between oxidation and reduction?

In chemistry if a substance is oxidised it loses electrons in a reaction.

If a substance is reduced it gains electrons in a reaction.

A reaction that has both oxidation and ...

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Answered by Thomas C. Chemistry tutor
28884 Views

What are the events in the cardiac cycle?

The cardiac cycle is the series of events that leads to blood being pumped to the lungs and around the body.

The cycle begins with the SAN (sino-atrial node). This is the hearts 'pacemake...

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Answered by Thomas C. Biology tutor
8294 Views

How do white blood cells protect us from infection?

Sometimes microorganisms are able to make it past the body's external defences (i.e. the skin) the body's immune system must defend the body.

White blood cells are really important in the...

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Answered by Thomas C. Biology tutor
23934 Views

Find the value of 2∫1 (6x+1) / (6x2-7x+2) dx, expressing your answer in the form mln(2) + nln(3), where m and n are integers.

This fraction can’t be integrated easily, but if we split it using partial fractions, these will be easier to integrate. To do this, we need to factoise the denominator, as this will follow the method of ...

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Answered by Jed M. Maths tutor
13163 Views

How do we regulate body temperature?

Homeostasis, the regulation of stable body conditions, includes control of body temperature. We function efficiently at 37 degrees celsius, as our proteins and enzymes work best at this temperature. 

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Answered by Sophie S. Biology tutor
4508 Views

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