- What role did guilds play in the development of European crafts?
- To what extent does the control of key maritime chokepoints influence global trade patterns?
- How does tail morphology vary across different living things and why?
- What role do non-governmental organizations (NGOs) and advocacy groups play in promoting and protecting immigrant and refugee rights in the USA?
- What are the main pharmacological and non-pharmacological treatments for bipolar disorder?
- What are the key features of the biological structure of sea stars?
- How can cognitive reappraisal strategies be used to reduce the negative effects of frustration?