1. Which of the following will have the least effect on the rate of change of the numbers in a population? 42

2. Which of the following is an example of discontinuous variation? 51

3. Which of the following is described as an increase in dry weight? 8

4. Which of the following values showing the total biomass of organisms in a food chain represents the secondary consumer? 37

5. In Mendel’s experiments, it was discovered that the skin of an African can be attributed to WAEC 2003 QST 57