6Quizzes
Marine Biology
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.
Sharks
Shark skeletons, senses, teeth, reproduction, famous species and their role as ocean predators.
Marine Mammals
Whales, dolphins, seals, and sea otters.
Ocean Zones
From the intertidal zone to the abyssal depths.
Coral Reef Ecosystems
The biology of coral polyps and their symbiotic relationships.
Deep Sea Adaptations
Bioluminescence, pressure, and chemosynthesis.
Plankton & Primary Productivity
The base of the marine food web.
Dictionary
Key Marine Biology Terms
Plain definitions, with how to say each word and where it comes from.
- Bioluminescence
Bioluminescence is the production of light by a living organism through a chemical reaction, as seen in fireflies and in many deep-sea animals.
- Coral bleaching
Coral bleaching is the paling of stressed corals as they lose the tiny symbiotic algae inside their tissue, most often because the water is too warm.
- Coral reef
A coral reef is an underwater ridge built over centuries from the limestone skeletons of colonial coral animals, home to some of Earth's richest sea life.
- Estuary
An estuary is a partly enclosed coastal body of water where river water meets and mixes with seawater, so that the water there is brackish.
- Ocean acidification
Ocean acidification is the ongoing fall in the pH of seawater, driven mainly by the uptake of carbon dioxide that human activities release into the air.
- Phytoplankton
Phytoplankton are microscopic photosynthetic organisms that drift near the surface of oceans and lakes and form the base of most aquatic food webs.
Career
Where Marine Biology Leads
Careers that use it: what each job is, how people get in and what it pays.
- Marine Biologist
Studies life in the oceans and along coasts, from plankton to whales, and how it responds to fishing, pollution and warming seas.
Keep Exploring
Related Disciplines
Subjects close to Marine Biology, each with its own set of quizzes.
All 35 disciplines