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A Level

Outline the similarities and differences between the social and biological areas of psychology.

Similarities - Both areas use the scientific methodology to measure behaviour, by manipulating the independent variable to measure the effects it has on the dependent variable. In addition, experiments in...

PA
Answered by Phoebe A. Psychology tutor
31499 Views

What are enzymes and how do they work?

Enzymes are small proteins found in living organisms. They are described as biological catalysts, meaning they speed up reactions and remain unchanged at the end, ready to do the same aga...

IM
Answered by Isabel M. Biology tutor
3044 Views

How do you show some quadratic polynomials are always greater than 0?

Usually, there are two ways to solve this kind of problems. You could re-arrange the polynomial, make it become a square plus a constant, then the polynomial is greater or equal to the constant since a sq...

LW
Answered by Luke W. Maths tutor
6226 Views

Why do organs need to be 'matched'?

The antigens present on the cell surface membranes of organs are different from person to person due to genetic variation (leading to protein tertiary structure variation - remember antigens are proteins ...

FE
Answered by Frances E. Biology tutor
2577 Views

Differentiate the function y=4sqrt(x)

Can re-write function as y=4x1/2Then follow the standard steps for differentiating a power. Take the 1/2 down and multiply by the number in front of the x, in this case 4, to give 2. Now reduce...

CW
Answered by Calum W. Maths tutor
3482 Views

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