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Explain the advantages of red blood cells passing through a capillary one at a time (3 Marks)

Red Blood Cells (erythrocytes) are approximately 0.01 mm, so only one can pass through the small capillary. The advantage of this is that there is a larger surface area exposed, more time available and short...
EC
Answered by Erin C. • Biology tutor
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Solve x^2=4(x-3)^2

Start by look at the right hand side of the equation, first expand (x-3) 2 which is also the same as (x-3)(x-3). This comes out to equal (x 2 -6x+9). Next multiply (x 2 -6x+9) by 4 which was left outside of ...
LR
Answered by Louis R. • Maths tutor
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Translate the following: Me gustaría ir al cine con mis amigos este sábado pero mi tío no me deja ir.

I would like to go to the cinema with my friends this Saturday but my uncle will not let me.
WG
Answered by William G. • Spanish tutor
2536 Views

Explain in terms of specific heat capacity why a hot water bottle is good at heating a bed.

Water has a very high specific heat capacity, it is fair to assume bed-sheets and bedding items have a much lower specific heat capacity. If an object has a high temperature and is in surroundings at a lower...
JL
Answered by Jessica L. • Physics tutor
11944 Views

How would I approach the comparison of two unseen poems?

Comparing unseen material under exam conditions can be challenging, which is why it is important to take the necessary time at the start to read through the poems more than once and pick out comparative poin...
MT
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