Explore the vast ecosystems of our oceans. These quizzes cover everything from the sunlit coral reefs to the dark abyssal depths. Test your knowledge of ocean zones, marine mammals, plankton, and deep-sea adaptations.
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Marine Biology
Beginner
Ocean Zones
From the intertidal zone to the abyssal depths.
10 min
8 Q
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Marine Biology
Intermediate
Coral Reef Ecosystems
The biology of coral polyps and their symbiotic relationships.