Top answers

What is Evolution?

The Theory of Evolution states that organisms change (evolve) over a long time (from simple life forms) due to natural selection. Natural Selection: this is based on 3 key points. 1: that there is a lot of d...
DY
Answered by Dominic Y. • Biology tutor
4736 Views

Proton NMR Made Easier

Proton or 1 H NMR can look complicated but with practice; there are techniques that can make the peak assignment a little easier.1. Make sure you count the proton environments correctly, if the molecule disp...
ML
Answered by Martin L. • Chemistry tutor
4791 Views

What is a stationary point on a curve? How do I calculate the co-ordinates of a stationary point?

A stationary point simply means a point in a curve where the gradient is equal to 0.For example, in the June 2015 C3 Paper it is asked:Find the exact values of the coordinates of the stationary points of the...
ML
Answered by Martin L. • Maths tutor
6545 Views

How do you analyse a poem?

When first looking at a poem, being by identifying the main themes of the poem. Then identify key devices used in order to convey the theme and the message the poet wanted to portray to the reader (e.g. usin...
JA
Answered by Joanne A. • English tutor
2293 Views

What is the structure of DNA?

DNA is a double helix. Consisting of two strands, which are made up of bases A T C and G Complementary base pairing occurs, where if part of one strand contains an A, the same part of the other strand contai...
TD
Answered by Thomas D. • Biology tutor
4015 Views