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What is diffusion?

Diffusion is the net movement of particles from an area of high concentration to an area of low concentration. This means that the particles of a substance move from where there is lots of it to where there ...
RJ
Answered by Rhiannon J. • Biology tutor
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How do I write an introduction to an English literature essay?

For this answer I will be using the example question "Much American literature is based on the fantasy of the American Dream. Discuss." applied to The Great Gatsby by F. Scott Fitzgerald. The first...
PD
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How would you differentiate the proximal and distal convoluted tubules using light microscopy. Explain your answer.

Using a light microscope, the lumen of the proximal convoluted tubule appears 'hairy' due to the presence of a brush border of microvilli. However, the lumen of the distal convoluted tubule is smooth and cle...
SE
Answered by Sito E. • Biology tutor
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What role do natural killer cells and phagocytes play in the specific and non-specific destruction of pathogens?

With regards to the non-specific immune response, phagocytes engulf and digest pathogens through phagocytosis. Natural killer cells detect infected cells through monitoring the presence of particular signals...
CC
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15x^2 − 4x + x^2 + 9x − x − 6x^2 =

15x^2 − 4x + x^2 + 9x − x − 6x^2 = ?First you can break up the question and sort out the x^2 part of the equation to make it easier: 15x^2 + x^2 − 6x^2 = 10x^2Then you are left with solving the second part o...
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Answered by Jonjo H. • Maths tutor
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