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Discuss how X-rays and Ultrasound can be used for medical purposes, including their advantages and disadvantages.

Uses for x-rays: Detecting broken bones, Cancer treatment, CT scans._
Uses for Ultrasound: Pre-natal scanning, Destruction of kidney stones/plaque on teeth, Internal imaging of body parts._

A...

IF
Answered by Isaac F. Physics tutor
9754 Views

Can an author use a particular contemporary issue or a precise historical context as a means to convey a more timeless and universal matter?

Like all artists, authors are influenced by the events of their time and era. While Fitzgerald's The Great Gatsby was greatly inspired by the roaring twenties' historical context, Kipling's works captured...

JS
4370 Views

Solve for x: 2x^2 + 2x -24 = 0

  1. The general formula of a quadratic is ax^2 + bx + c -> this is a quadratic 2) Factorise using common factor (=2) -> 2(x^2 + x - 12) = 0 3) Factorise the quadratic to (x + m)(x + n): the two nu...
YZ
Answered by Yige Z. Maths tutor
10984 Views

Briefly describe the mechanism of muscle contraction.

In muscle, myosin protein has 'heads' that act as cross-bridges as they bind to actin, another protein. When ATP binds to myosin, its head detaches from actin, swings forward and rebinds. Rebinding releas...

HG
Answered by Hester G. Biology tutor
9958 Views

Describe some of the means by which a plant might defend itself, bearing in mind that it is 'sessile' (it cannot move around)?

The plant could have structural defence mechanisms such as 'thorns' or 'spines' which could cause damage to the mouth of herbivores so the plant is not eaten. It could also have 'stings' which are little ...

HG
Answered by Hester G. Biology tutor
3255 Views

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