Review A-Level Edexcel Biology translating between data forms through graph comments, comparisons, numerical support and evaluation of evidence limits.
Coral reefs are one of the Earth's most diverse biological environments.
They are thought to cover of the planet.
It is estimated that by 2030,90% of coral reefs will have been damaged by anthropogenic activities.
The photographs show an undamaged coral reef in the Maldives and a damaged coral reef elsewhere.
Undamaged reef
Damaged reef
Another method being developed to restore damaged coral reefs uses 'reef carpets' (RC).
The diagram shows coral RCs.
Three types of coral were each grown on a RC.
The coral RCs were left on the seabed and monitored for 17 months.
The scientist developing this method monitored the health of the coral and the diversity of fish that were present on three types of coral, A, P and S.
The graph shows the diversity of fish present with these types of coral RCs.
Diversity of fish
State two conclusions that can be made about the diversity of fish on these three types of coral.
(2)