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Describe the differences and similarities between diffusion and osmosis.

Diffusion and osmosis both describe the net movement of molecules down a concentration gradient, resulting in an even spread of the molecule over an area over time. Osmosis, however, is more specific as it r...
PS
Answered by Patrick S. • Biology tutor
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Outline and evaluate the behaviourist approach (16 marks)

The behaviourist approach has four main assumptions. The first being is that all behaviours are learnt from the environment. The second assumption is that animals and humans learn in the same way which has r...
RJ
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Let A, B and C be nxn matrices such that A=BC-CB. Show that the trace of A (denoted Tr(A)) is 0, where the trace of an nxn matrix is defined as the sum of the entries along the leading diagonal.

This is the type of question which requires some out of the box thinking. A sketch is presented below: We start by defining A = (a ij ), B = (b ij ) and C = (c ij ). We then use the definition of matrix mult...
DG
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What rehearsal techniques would you use to explore the relationship between [Character 1] and [Character 2] in the above extract?

Firstly, I would want to address the three main aspects of drama/theatre that could be used to communicate a relationship: spatial relations and proxemics, non-verbal communication and verbal communication. ...
EW
Answered by Ellen W. • Drama tutor
5754 Views

What are indices laws?

Indices are often referred to as powers of a number. A power of a number is the number of times you multiply that number by itself. The indices laws are the rules for how these numbers can be manipulated to ...
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Answered by Alex G. • Maths tutor
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