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Describe how animals and plants are adapted to survive in dry conditions such as deserts. For each adaptation explain how this helps them survive. (6 marks)

There are many ways that animals are adapted to live in dry conditions. First, a decrease in surface area reduces water loss by minimising sweating. They may also have long eyelashes ...

Answered by Lucy B. • Biology tutor

17217 Views

Let y=arcsin(x-1), 0<=x<=2 (where <= means less than or equal to). Find x in terms of y, and show that dx/dy=cos(y).

First, the question asks us to find x in terms of y, or in other words, rearrange the equation to be in the form 'x=', rather than 'y=', as it is currently. We start wit...

Answered by Kalina M. • Maths tutor

6615 Views

Which Tsar was famous for his Enthusiasm for France? http://www.lemonde.fr/arts/article/2017/05/29/vladimir-poutine-sur-les-pas-de-pierre-le-grand-a-versailles_5135554_1655012.html

Peter the Great. This leads on to further questions about the article and the current context of diplomatic relations between France and Russia. At A level the pupil will be encouraged to start expressing...

Answered by Thomas W. • French tutor

2768 Views

What is the trend in electronegativity of group 7?

The electronegativity is the tendency of an atom to attract electrons towards itself in a covalent bond.

The electronegativity of the halogens decreases down the group as the radius of each atom in...

Answered by Seetal A. • Chemistry tutor

24862 Views

Why is the index of refraction important for light passing between two materials?

It's important information as it tells you how fast light travels through the material. This can give you an insight into how the angle of refraction of the light is related to the angle ...

Answered by Oliver P. • Physics tutor

1942 Views