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Describe how oxygen in the air reaches the capillaries surrounding the alveoli in the lungs.

Oxygen moves down the trachea, into the bronchi and into the smaller bronchioles, down a pressure gradient. Once the oxygen reaches the alveoli it moves down a diffusion gradient across the alveolar epith...

SJ
Answered by Sasha J. Biology tutor
8635 Views

How do I simplify an equation?

Lets take this as an example:

Simplify 5a - (2a + 6)

To 'simplify an equation' means to put it at its most basic form

To make it easier for us, we can place a 1 infront of the bracket...

LG
Answered by Laura G. Maths tutor
11782 Views

State the meaning of the term first ionisation energy

Energy (or enthalpy) needed to remove one electron from one atom.

AE
Answered by Azobir E. Chemistry tutor
2364 Views

Examine the role of Dr. Rank in A Doll's House.

In the play A Doll’s House, Henrik Ibsen includes Dr. Rank, a seemingly insignificant yet underappreciated character. This particular name is integral to the dramatist’s elaborate characterization...

MM
29466 Views

Solve the simultaneous equations: x^2 + 8x + y^2; x - y = 10.

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