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Humans and grasshoppers have very similar percentages of each base in their DNA but they are very different organisms. Use your knowledge of DNA structure and function to explain how this is possible (2 Marks)

If you’re first thought on reading this is panic. Don’t worry there are a clues to guide you to the answer. As with almost every problem the first step is to read the question carefully and look at the numbe...
JC
Answered by James C. • Biology tutor
27546 Views

If y = (1+3x)^2, what is dy/dx?

A good approach to solve this is to use the chain rule of differentiation. The chain rule states: dy/dx= (dy/du)*(du/dx). In this case let u = 1+3x, so y = u^2. Then dy/du = 2u and du/dx = 3, so dy/dx = (2u)...
NB
Answered by Nishit B. • Maths tutor
10371 Views

How can I learn new vocabulary?

Everyone learns in different ways, but some of the most common ways of learning new vocabulary are explained below. Try the techniques to work out which way works best for you, and you can adapt it as necess...
DP
Answered by Danielle P. • Spanish tutor
3520 Views

How should I answer data response questions?

Data response questions are either 4,6,8,10 or 14 marks. The marks awarded for each type of question are: 4 marks: K=2 Ap=2 6 marks: K=4 Ap=2 8 marks: K=2 Ap=2 An/diagram=4 10 marks: K=2 Ap=2 An/diagram=2 E=...
KS
27081 Views

How should I answer 4 mark multi-choice questions?

Always start the answer by defining the keywords in the question. You can gain up to 2 marks for definitions alone. Second, give a simple analysis of your answer. Transmission mechanisms are often a good way...
KS
4069 Views