A lobster and a sea urchin are arrested for having committed a bank robbery.Each claims that he is innocent and that witnesses saw his identical twin, not him, commit the crime.Leaving aside the general implausibility of their stories, which one do you know must be lying, and why?

MCQs on the field of Marine Biology, from a survey of the origin of oceans and their movements to details of marine food webs, life cycles, and marine zonation. As well as on marine environment and ecology, taxonomy and physiology, and contemporary concerns in the field, including human influences on marine systems.