The rocky shore: Practice Questions

Which of the following is a common adaptation used by organisms like limpets to survive the conditions on a rocky shore during low tide?

Organisms living on an exposed rocky shore must withstand significant physical stress from wave action. Which set of adaptations is most effective for maintaining a secure position on the rock surface in these conditions?

The graph shows the changes in salinity within a rock pool on the upper shore over a 12-hour period. The horizontal axis represents time in hours and the vertical axis represents salinity in \(\text{ppt}\). Which process is most likely occurring between hour 2 and hour 6?

Which of the following lists the zones of a rocky shore in the correct order, starting from the area highest on the shore (closest to the land) and moving towards the low tide mark?

On a typical exposed rocky shore, which of the following factors is most likely to be the primary limiting factor for organisms living in the lower shore zone?

The rocky shore is a highly zonation-dependent ecosystem.
(a) Identify the different zones found on a typical exposed rocky shore.
(b) Explain how abiotic factors such as temperature and exposure to air change across these zones during a single tidal cycle.
(c) Suggest why competition and predation are more influential on the lower shore than on the upper shore.