which of the following best explains the result of adult corals being exposed to elevated temperatures for extended periods?
Which of the following best explains the result of adult corals being exposed to elevated temperatures for extended periods?
Answer:
When adult corals are exposed to elevated temperatures for extended periods, they undergo a process known as coral bleaching. Coral bleaching is primarily caused by the expulsion of symbiotic algae called zooxanthellae from the coral tissues. These algae provide corals with energy through photosynthesis and lend them their vibrant colors. However, under stressful conditions such as high temperatures, corals expel these algae, leading to a loss of color and a visible whitening of the coral reefs. Without the algae, corals become more susceptible to disease and have reduced energy reserves, which can ultimately result in coral death if the stressful conditions persist. Therefore, prolonged exposure to elevated temperatures can have devastating effects on the health and survival of adult corals.