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.

what's the

name and explain one of the event that occurs during meiosis that increases the variation in offspring even more than simple reproduction?

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.