An environmental scientist is investigating the impact of ocean acidification on the development of juvenile marine snails (Littorina littorea). They plan to conduct a controlled laboratory experiment to determine whether the pH level of the artificial seawater (pH 7.6 versus pH 8.1) affects the snails' shell calcification rate, measured by the percentage increase in shell dry weight over a 60-day period.
Write a suitable directional (one-tailed) experimental hypothesis for this study.
Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 689 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
