TOEFL Listening: ETS-TOEFL听力机经 - H658924QD551AF88P$

Aside from overall decline, what change in reefs does the professor predict will occur if frequent bleaching continues? A. Coral populations will shift to occupy different locations on reefs. B. Branching forms of coral will become less resistant to bleaching. C. Reefs will contain higher numbers of corals with dome-like forms. D. Additional types of zooxanthellae will appear in reef-building corals.