Ocean Quizzes
Test your knowledge about our ocean and its fascinating inhabitants...
Know of a great source for ocean / marine life related quizzes? Email us or post a comment about it below…
 Who has the longest gestation period of all cetaceans? Blue whales Fin whales Pilot whales Orcas Pacific white-sided dolphins Answer: click here |  Known predators of the Harp seal are: Polar bears Orca sharks Walruses Humans Answer: click here |
 Which is a tool-using marine mammal? Hydrurga leptonyx Enhydra lutris Zalophus californianus None of the above Answer: click here |  The above is… a Dinoflagellate M. pyrifera Asterionella sp. green algae Answer: click here |
| What is a Vaquita? A species of Dolphin A species of Porpoise A seabird like a cormorant A deep sea Anglerfish Answer: click here | Which of the following do Seahorses not have? Gills Stomachs Teeth Answer: click here |
Castro/Huber: Marine Biology, 5th Edition :: Practice Quizzes
Quiz for Chapter 1: The Science of Marine Biology
Quiz for Chapter 2: The Sea Floor
Quiz for Chapter 3: Chemical and Physical Features of Seawater and the World Ocean
Quiz for Chapter 4: Some Basics of Biology
Quiz for Chapter 5: The Microbial World
Quiz for Chapter 6: Multicellular Primary Producers: Seaweeds and Plants
Quiz for Chapter 7: Marine Animals Without a Backbone
Quiz for Chapter 8: Marine Fishes
Quiz for Chapter 9: Marine Reptiles, Birds, and Mammals
Quiz for Chapter 10: An Introduction to Marine Ecology
Quiz for Chapter 11: Between the Tides
Quiz for Chapter 12: Estuaries: Where Rivers Meet the Sea
Quiz for Chapter 13: Life on the Continental Shelf
Quiz for Chapter 14: Coral Reefs
Quiz for Chapter 15: Life Near the Surface
Quiz for Chapter 16: The Ocean Depths
Quiz for Chapter 17: Resources from the Sea
Quiz for Chapter 18: The Impact of Humans on the Marine Environment