Hard corals have a symbiotic relationship with species of microalgae that give the corals their color and provide up to 95% of the corals' energy needs by photosynthesis. Corals get the rest of their food by consuming plankton. The microalgae are damaged by changes in water temperature 2-3C lasting five weeks or more, causing a phenomenon called coral bleaching. What will most likely be the result of increased global temperature on the diversity of hard coral species?
Question 1 options:


The hard corals will make all of their own food.


The rate of photosynthesis in hard corals will increase.


The number of different hard coral species will decrease.


The hard corals will migrate to warmer waters.