Evaluate
Evaluate
In the context of the exam questions this means that: you should use the information supplied as well as your KNOWLEDGE and UNDERSTANDING to consider evidence FOR and AGAINST.
If it's one of the longer answers I would always recommend adding a reasoned conclusion to the end of your answer as well. Stating what you think overall and why you came to that conclusion.
A very good way to revise for this type of question is to create a table of pros and cons whenever you spot topics that lend themselves to this question type.
Typical examples are:
Types of microscope
Different gas exchanging gases methods
Treatments for cardiovascular disease
IVF
Different methods of contraception
Genetic engineering
Intensive farming