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Name and describe the process that leads to air entering the lungs

This process is called Ventilation and is a required step in aerobic respiration.This process starts with the diaphragm contracting, one also sees the (external) intercostal muscles contract. These contracti...
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Answered by Sam M. • Biology tutor
3105 Views

Find the area of the rectangle, in cm, with width 4x and length (y+5). Then calculate the area for x = 7 and y = 8.

To start, we need to state that the area of a rectangle is the length multiplied by the width. Therefore, the area will be 4x multiplied by (y+5). Now to do this we need to expand the bracket. To expand the ...
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Answered by Toby P. • Maths tutor
3409 Views

There are 12 counters in a bag. There is an equal number of red counters, yellow counters and blue counters in the bag. There are no other counters in the bag. 3 counters are taken from the bag. Work out the probability of taking 3 red counters.

If there are 12 counters in a bag,each with colour either red, yellow or blue, we can say that the number of red counters, blue counters and yellow counters must add up to 12.R + B + Y = 12 ( R = No. of Red ...
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Answered by Lewis B. • Maths tutor
16180 Views

؛السنة الماضية سافرت الي بغداد مع اهلي لمدة اسبوعين؛ Answer Question in english. How long did she stay in Baghdad.

She stayed there for two weeks
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Answered by Sara Z. • Arabic tutor
3173 Views

Explain the formation of bays and headlands (6 marks)

Some areas of coast, such as the 90 kilometer Purbeck coastline on the South coast of England are known as discordant coastlines. This means they have bands of rocks with alternating resistance, in layers pe...
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Answered by James S. • Geography tutor
14470 Views