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
Pacific white-sided dolphins

Answer: click here

Known predators of the Harp seal are:
Polar bears

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?

Answer: click here

ProchlorococcusCastro/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

polypsQuiz 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

Quiz for Chapter 19: The Oceans and Human Affairs