Acoral reef is the product of tiny animals—invertebrates related to jellyfish. inside the tissues of coral animals live microscopic algae that provide all of the dazzling colors associated with reefs. sometimes, coral animals lose their algae, a condition known as bleaching because the coral suddenly looks white. in recent years, bleaching has affected more and more reef systems all over the world. what do scientists think is causing coral bleaching? a. pollution from chlorine dumping b. overfishing around the reef c. cooler ocean temperatures d. warmer ocean temperatures answer d. warmer ocean temperatures

It’s d. Warmer ocean temperatures but you also wrote that the answer is d in your question lol

The diaphragm is what i think ur talking about

Hunting in the darksome fish rely on senses beyond sight. in the darkness of the marianas trench, a fish called the rattail has an extremely sensitive sense of smell. the fish uses scent, rather than sight, to steer toward food. once it's near food, the rattail uses a special organ on the bottom of its chin to guide itself by feel.marine snowone staple of the deep sea diet is "marine snow," flakes of organic, edible substances that sink down from the upper ocean. animals at the ocean's bottom find sustenance in everything from the bodies of dead creatures to fecal matter. marine snow is diverse enough to support numerous species. for instance, several species of snails and worms feed exclusively on deceased whales.microorganismsthe deep sea is an intricate ecosystem, and even the ocean floor itself plays a part. hydrothermal vents are cracks in the sea floor where erupting magma mixes with ocean water to produce plumes of hot, sulfur-rich chemicals. some microbes can use these chemicals for energy, sustaining their existence and that of the animals who depend on their roles in the deep sea food chain.