Cambridge Secondary (7-9). Stage 9. MCE Science. Workbook - Unit 3: Variation and Inheritance - Question 25

Investigate variation in leaf length using 10–15 leaves from the same plant or same species of plant and a ruler. Measure the leaf blade from apex (tip) to base, excluding the stalk. Do you think you have a reliable estimation of the range of variation in leaf size of the species of plant?