No marks will be given for tests in which solutions are evaporated to dryness Comment critically on the following arguments
Either write equations for or name the products of any definite chemical reactions to which you refer Candidates must assume that BB1 and BB2 are as described in the question paper.
They must not be told how the solutions are actually prepared. Two hours and a half
Examine the table and answer the following questions
Write down a sequence of three numbers to indicate three successive stages in the
life history of any one insect species
Each word may be used once, more than once or not at all
Fig. 5 shows a sequence of cell divisions.