Search over 10,000 free study notes

AQA recommends spending 40 minutes answering this exam question, but you should definitely spend the first 5-10 minutes of that time planning. First of all break down the question; we have a quote and we ...

                                                     Ca             NPercentage:                         81.1%       18.9%Relative atomic mass:     40.1             14Ratio:                               ...

A mass extinction is a large decrease in the number of species over a relatively short period of time (several millions of years). The most likely cause of this species decline i...

The term 'ethnocentric' describes an attitude or policy that gives priority to the culture and viewpoint of one particular ethnic group, while disregarding others. The culture that domina...

92A human has 46 chromosome (23 pairs). After the genetic material is duplicated and condenses in Prophase, there are still 46 chromosomes but they exist in an X-shape, where two sister-chromatids are att...