Search and browse 1000’s of questions from past papers and view answers.
Read the article below and answer the questions that follow:
(2013)
Draw a large labelled diagram to illustrate the main features of the nitrogen cycle
The graph below shows the fluctuations in the population of a predatory species over many years.
From your knowledge of ecology explain any five of the following terms:
(2014)
The following biochemical reactions took place in some living cells:
