Click Restart. in 1983, a mysterious disease killed off most of the long-spined sea urchins in the Caribbean. To model this, select Disease from the Conditions tab and set the Sea urchin infection rate to 100%. check that Sewage is still 50%. Click Advance year 10 times. Based on the results, what is the importance of long-spined sea urchins to Caribbean reefs?

Question 12 options:

Long-spined sea urchins are a valuable food source for fish.

Long-spined sea urchins keep the algae population in control and keep the reef from being overgrown.

Long-spined sea urchins are important producers.