The number of a species of shark has fallen because many sharks are caught for their fins.
Which action would most directly help to conserve this species of shark?
building more fish farms to breed fish that the sharks eat
banning the catching of this species of shark in its habitat
removing the smaller fish that compete with the sharks for food
catching more of the fish species that the sharks feed on
109 exam-style questions on OCR GCSE Biology 6.1 Monitoring and maintaining the environment, covering 6.1.1 Field investigation of distribution and abundance, 6.1.2 Human interactions and biodiversity, 6.1.3 Maintaining biodiversity, and 6.1.4 Environmental change and distribution of organisms. Each one has a worked solution and a mark scheme showing where the marks go.