Marine Biology Exam Questions and Answers | Latest 2026 Update
Q: What protein produces bioluminescence?
Answer:
Luciferin Bioluminescent patterns can indicate: a.species. b.hunting strategies. c.all
of these choices. d.gender. What characteristics do many deep-sea fish have
regarding their eyes? They have tubular shaped eyes and two retinas. Some
deepwater fish like the anglerfish have solved the issue of finding a mate by: having
the males attach to the females. ________ allow(s) for surface feeding and the
introduction of more food to the deep depths. Vertical migration What fleshy
projection is an adaptation some fish have to lure prey in? Barbel What is a possible
reason deep-sea animals can be much larger than their surface relatives? They have a
longer lifespan. What is a major predator of giant squids? Sperm whales What
organism gave biologists essential clues into the evolution of tetrapods? Coelacanth
What environmental factor seems to have the most impact on deep-sea, benthic
organisms? Food availability
,Q: What process delivers organic nutrients to abyssal plains and trenches near
continental shelves?
Answer:
Turbidity currents Black smokers are rich in ________, while white smokers have
high levels of ________. copper sulfide; zinc sulfide How long are active vents
thought to last? 20 years What do Riftia worms lack that makes them different than
other worms? A digestive system How much plastic enters the ocean each year? 1
million metric tons What might a sea turtle or seabird mistake a plastic bag for which
makes plastic bags extremely dangerous? Jellyfish After major wars, the military has
dumped hardware, equipment and munitions into the ocean. true What is a major
argument for the dumping of radioactive wastes in the deep-sea trenches of the
ocean? The waste would be taken to the mantle via subduction zones. Which
chemical is responsible for the thinning of eggs from seabirds? DDT ________
occurs when the concentration of pollutants gets higher as it passes to higher trophic
levels. Biological magnification What kind of bacteria is used to monitor coastal
water quality? Coliform bacteria
, Q: What cyclic process results from the introduction of sewage as nutrients?
Answer:
Eutrophication ________ is thought to have caused a harmful dinoflagellates bloom
in the Chesapeake Bay area. Agricultural runoff Water with abnormally low oxygen
levels is known as a(n): hypoxic zone. What is currently a main contaminate of
beaches? Overflowing storm drains Which general organic compound forms ringed
carbon structures? Aromatic hydrocarbons ________ tend to be more toxic than
________. Aromatic compounds; aliphatic compounds What slowed down the
decomposition rate of the oil spilled from the Exxon Valdez? Cold temperatures How
can oil cause hypothermia in birds? Oil coats large outer feathers so they cannot repel
water. What organisms are susceptible to being smothered by a coating of oil in
sediments? Invertebrates Water temperature, and therefore global warming, plays a
vital role in: species distribution. How are nonnative species frequently transported?
Ships' ballast
Q: What protein produces bioluminescence?
Answer:
Luciferin Bioluminescent patterns can indicate: a.species. b.hunting strategies. c.all
of these choices. d.gender. What characteristics do many deep-sea fish have
regarding their eyes? They have tubular shaped eyes and two retinas. Some
deepwater fish like the anglerfish have solved the issue of finding a mate by: having
the males attach to the females. ________ allow(s) for surface feeding and the
introduction of more food to the deep depths. Vertical migration What fleshy
projection is an adaptation some fish have to lure prey in? Barbel What is a possible
reason deep-sea animals can be much larger than their surface relatives? They have a
longer lifespan. What is a major predator of giant squids? Sperm whales What
organism gave biologists essential clues into the evolution of tetrapods? Coelacanth
What environmental factor seems to have the most impact on deep-sea, benthic
organisms? Food availability
,Q: What process delivers organic nutrients to abyssal plains and trenches near
continental shelves?
Answer:
Turbidity currents Black smokers are rich in ________, while white smokers have
high levels of ________. copper sulfide; zinc sulfide How long are active vents
thought to last? 20 years What do Riftia worms lack that makes them different than
other worms? A digestive system How much plastic enters the ocean each year? 1
million metric tons What might a sea turtle or seabird mistake a plastic bag for which
makes plastic bags extremely dangerous? Jellyfish After major wars, the military has
dumped hardware, equipment and munitions into the ocean. true What is a major
argument for the dumping of radioactive wastes in the deep-sea trenches of the
ocean? The waste would be taken to the mantle via subduction zones. Which
chemical is responsible for the thinning of eggs from seabirds? DDT ________
occurs when the concentration of pollutants gets higher as it passes to higher trophic
levels. Biological magnification What kind of bacteria is used to monitor coastal
water quality? Coliform bacteria
, Q: What cyclic process results from the introduction of sewage as nutrients?
Answer:
Eutrophication ________ is thought to have caused a harmful dinoflagellates bloom
in the Chesapeake Bay area. Agricultural runoff Water with abnormally low oxygen
levels is known as a(n): hypoxic zone. What is currently a main contaminate of
beaches? Overflowing storm drains Which general organic compound forms ringed
carbon structures? Aromatic hydrocarbons ________ tend to be more toxic than
________. Aromatic compounds; aliphatic compounds What slowed down the
decomposition rate of the oil spilled from the Exxon Valdez? Cold temperatures How
can oil cause hypothermia in birds? Oil coats large outer feathers so they cannot repel
water. What organisms are susceptible to being smothered by a coating of oil in
sediments? Invertebrates Water temperature, and therefore global warming, plays a
vital role in: species distribution. How are nonnative species frequently transported?
Ships' ballast
