Healthy corals are brightly coloured because they ________.
A) secrete colourful pigments to attract mates
B) host symbionts with colourful photosynthetic pigments
C) build their skeletons from colourful minerals
D) secrete colourful pigments to protect themselves from ultraviolet light

Question

Quizplus · Accepted Answer

Healthy corals host symbiotic algae (zooxanthellae) that live within their tissues, providing them with energy from photosynthesis. These algae contain colourful pigments such as chlorophyll, which gives corals their vibrant hues.

Healthy Corals Are Brightly Coloured Because They ________