What is the primary material coral reefs are built upon?
Which organisms are responsible for forming massive coral reefs?
What is symbiosis?
How do corals reproduce since they are sessile?
Which process of asexual reproduction is often used by people to restore coral reefs?
How does a coral reef grow over time?
How fast does a coral reef typically grow per year?
Where is the living coral found in a coral reef?
What happens if coral lacks zooxanthellae?
What happens if there is not enough sunlight for photosynthesis?
Why do coral reefs struggle in murky waters?
What is the maximum temperature for coral growth?
What is the first sign of heat stress in corals?
What happens to corals during bleaching?
Which type of reef grows closest to the shoreline?
Which type of reef is separated from the land by a lagoon?
Which type of reef forms from volcanoes?
What must corals on the reef crest withstand? Select all that apply
Where do corals typically thrive between 15-65 feet deep?
What is the main location of the reef on an atoll?
How are nutrients recycled in coral reef ecosystems?
What are some strategies hard corals use for competition? Select all that apply
Which animals protect coral from predators by pinching or biting?
What type of symbiotic relationship is described between the Hermit Crab and the Anemone?
Why is scientific research important for coral reefs?
What is illustrated as a negative impact on the reef ecosystem?
BONUS: What happens if corals lack zooxanthellae?
BONUS: How are individual coral polyps connected?
BONUS: Under what conditions may a polyp engage in bailout reproduction?
BONUS: Why are corals called 'bleached' during bleaching?
BONUS: What is the Great Barrier Reef known for being?
BONUS: What may a small, shallow lagoon with little wave action become?
BONUS: Which strategy is used by soft corals and sponges? Select all that apply
BONUS: What does a mutualistic relationship involve?
BONUS: What does the creation of a marine sanctuary do for the reef?
BONUS: What organism pushes its stomach out to digest coral?