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Marine Biology

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  • Some fish can change sex from male to female, or vice versa. True or false?
    True
  • The world's longest mountain range is:
    The Mid-Ocean Ridge - it stretches 65 000 km
  • Which zone would the Mariana Trench be located?
    Hadal Zone
  • What does pH stand for?
    potential or power of Hydrogen
  • How much of the Earth's surface is covered by ocean?
    70%
  • Microfibers from synthetic fibers have been shown to make up the majority of human material found along the worlds shorelines, accounting for up to as much as _____% of the total.
    85%
  • A lot of people know what seahorses look like, but what more general group of organisms do they belong to?
    Fish
  • Which ocean is the largest?
    The Pacific Ocean
  • Why are "sea butterflies" under threat?
    Ocean acidification is preventing the healthy formation of their exoskeleton.
  • The "plant" classification of these critters produces 90% of the world's oxygen.
    Plankton/Phytoplankton
  • The largest coral reef in the world is:
    The Great Barrier Reef
  • Are there any marine reptiles?
    Yes. Marine iguanas of the Galapagos are true reptiles who dive into the surf for food. They sun themselves on the rocky shores of the islands to get warm, and
  • The largest structure created by non-human organisms is a type of what?
    Coral Reef
  • Name this zone!
    Abyssal/Abyssopelagic
  • What percentage of our oxygen is produced by the ocean?
    70%
  • Explain why increased atmospheric carbon dioxide can be problematic for ocean ecosystems?
    Carbon dioxide gas can dissolve into ocean water, resulting in ocean acidification.
  • What phylum are sea butterflies classified under?
    Mollusca
  • In 2018 a study was conducted to find where microplastics could end up. Where was it found?
    Inside human digestive tracts
  • According to a study conducted by Orb Media on plastics and tap water, ____% of tested water samples from major metropolitan areas around the world were contaminated with plastic fibers.
    83%
  • Plastics are made of synthetic polymers. What does "synthetic polymer" mean?
    It means it is made of repeating monomer units made by humans.
  • The largest compound eye of any organism on the planet belongs to what deep sea dweller?
    Giant Squid
  • Plastic is said to "never fully degrade." Explain what is meant by this.
    The most durable plastics can take 450+ year to degrade, but even so they only degrade into smaller and smaller pieces.
  • By how much has the acidity of the world's oceans increased by?
    30%
  • How much of the ocean is yet to be fully explored?
    95%
  • There are more historic artefacts under the sea than in all of the world’s museums. True or False?
    True
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