A scientists wishes to determine whether or not a marine ecosystem underwent primary or secondary succession in the past. What evidence would be most useful for making this determination?
Unearth the fossil history of the ecosystem to find producers that can live on rock.
Use radiocarbon dating to determine the age of the rock underlying the ecosystem.
Determine the average age of all producer species in the ecosystem at the present time.
Determine the chemical composition of the water in the ecosystem at the present time.