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The diagram below shows a spirometer trace of an athlete at rest. Complete the table to identify the type of lung volumes A,B and C show in the diagram.

A= Tidal Volume B= Expiratory Reserve Volume C= Residual Volume
DJ
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Asses the advantages and disadvantages to small to medium firms of holding a large amount of stock

One advantage of a small to medium firm of holding a large amount of stock is it allows the firm to rapidly respond to changes in consumer demand. This allows firms to maximise sales by satisfying a rise in ...
SS
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Describe and explain the shape and bond angle of ammonia

So firstly, we need to work out the basic shape of the molecule which we can do by drawing the lewis structure (dot and cross diagram) and counting the number of charge clouds around the central atom. In the...
Answered by • Chemistry tutor
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Describe how water is carried by the transpiration stream (7)

Transpiration is the water loss from the plant via evaporation. The transpiration stream is the flow of water through the plant xylem from the roots to the leaves of the plant. Xylem are thin tubes where the...
Answered by • Biology tutor
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Prove that the square of an odd number is always 1 more than a multiple of 4

Let n be any whole number. Any odd number can be written as 2n+1. Any odd number squared is therefore (2n+2) 2 =2n 2n+2 2n+1=4n 2 +4n+1=4(n 2 +n)+1. n 2 +n is a whole number, so 4(n 2 +1) is a multiple of 4....
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