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Life in the ocean

From sunlit plankton to life around deep-sea vents.

Marine Biology7 steps

Steps

Take the steps in order or jump to any of them. Readings link to the labs and sources behind them, and the quiz at the end is graded on our server.

  1. Ocean zonesStep 1: Read, 50 XP
  2. PhytoplanktonStep 2: Read, 50 XP
  3. ProchlorococcusStep 3: Read, 50 XP
  4. Hydrothermal ventsStep 4: Read, 50 XP
  5. ChemosynthesisStep 5: Read, 50 XP
  6. Coral bleachingStep 6: Read, 50 XP
  7. Life in the oceanStep 7: Quiz, up to 250 XP

About marine biology

Marine biology is the study of life in the ocean, from tiny plankton to whales.

Marine biologists study ocean zones, plankton, coral reefs and deep-sea life, including communities that run on chemical energy at hydrothermal vents.

Topics include primary production by phytoplankton such as Prochlorococcus, coral bleaching during marine heatwaves, bioluminescence and chemosynthetic symbioses.