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A Level

Why is it difficult for a baby to get enough oxygen to their tissues when there is a hole between the left and right ventricles?

It is important to remember the function of each of the ventricles. Remeber that the left ventricle pumps oxygenated blood around the body, and the right ventricle pumps deoxygenated blood to the lungs. I...

RA
Answered by Rachel A. Biology tutor
2782 Views

Do heavy things fall faster than small things?

In a vacuum (ie in the absence of air resistance) all things fall with exactly the same acceleration. The reason for this can be easily seen.

An object, with mass ‘m’, falling in a gravitational fi...

AD
Answered by Angus D. Physics tutor
2336 Views

What happens to a primary secondary and tertiary alcohol when an excess solution of Potassium Dichromate is added under acidic conditions, state the chemical formula of potassium dichromate?

pottasium dichromate (K2SO4) is an example of an oxidising reagent. If added to a primary alcohol, under reflux, carboxcylic acid will form, a secondray alcohol will form a ketone an...

CS
5762 Views

Explain the difference between tidal volume and total vital capacity. Under what circumstances would each occur?

Tidal volume is the normal volume of air inhaled in one breath at rest.

Total vital capacity is the maximum amount of air a person can expel from the lungs after a maximum inhalation. This usually ...

JB
Answered by Jemma B. Biology tutor
24288 Views

How do I ensure that I answer the question but also reveal how much knowledge I have acquired through revision and practice?

When you have invested a lot of time and energy into your revision, it is understandable that you want to convey this to your examiner. The way to do this is not, however, by setting down as much informat...

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Answered by Francis B. English tutor
2163 Views

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