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Nature & Animals

Which outcome occurs when ocean acidification increases beyond normal diel variation in reefs populated by zooxanthellae?

A)Coral bleaching event is prevalent
B)Accelerated skeletal growth will be apparent
C)Increased predation from reef fish
D)Enhanced photosynthetic rates by algae

💡 Explanation

Coral bleaching prevalence rises because the symbiosis breaks down due to excess hydrogen ions; corals expel Zooxanthellae via a process known as photoinhibition. Therefore A is factual, rather than faster growth given acidic environment that would make it harder to make calcium carbonate for coral skeletons.

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