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What major scientific area deals with the living, organic content of the seas?
Marine Biology
Marine Ecology
Oceanography
Microbiology
Oceanographic Ecology
What is the term that is defined as the movement of deeper layers of water toward the surface?
Upwelling
Callao Painter
El Nino
La Nina
Dinoflagellata
Where does upwelling generally occur?
Near the steepest gradient of the continental slope.
Near the most gradually sloping parts of the continental slope.
Near the steepest gradient of the continental shelf.
Near the most gradually sloping parts of the continental shelf.
In the deep ocean, far away from the continental slope and shelf.
Occasionally, upwelling off the coast of Peru stops and this causes fish and birds to die for lack of food. So many die that the hydrogen sulfide created from their decaying bodies turns ship's hulls black. What is this known as?
Callao Painter
El Nino
La Nina
Dinoflagellata
The Sargasso Sea
What is the name of the organisms that cause the Red Sea to appear to turn red?
Dinoflagellata
Zooplankton
Phytoplankton
Krill
Lobsters
What causes the Black Sea to contain no life below 200 feet?
Hydrogen Sulfide gas.
Light is unable to penetrate below this point.
An excessive amount of oxygen below 200 feet poisons all life.
An excessive amount of salt concentrations kills all life.
Carbon dioxide gas.
What term is used to describe the use of sunlight to manufacture food in a green plant?
Photosynthesis
Dinoflagellata
El Nino
La Nina
Chlorophyllia
What do Zooplankton feed on?
Phytoplankton
Small Fish
Shellfish
Krill
Dinoflagellata
Phytoplankton are only found to exist in the upper ____ feet of water.
90
200
10
50
75
What type of sea plant is the most common?
Algae
Kelp
Seaweeds
Sea cucumbers
Anemones
What is the largest form of zooplankton?
Jellyfish
Sea anemones
Dinoflagellata
Oysters
Protozoans
What is the smallest form of zooplankton?
Protozoans
Jellyfish
Dinoflagellata
Sea anemones
Algae
What physical feature marks the major divisions of marine animals?
Jaws
Fins
Backbones
Eyes
A nervous system
Which of the sea animals listed below is an example of a jawless marine animal type?
Hagfish
Fish
Reptiles
Birds
Mammals
What type of marine animals attach themselves to living fish and make open sores to feed on blood and tissue?
Lampreys
Hagfish
Manta Rays
Sea Ticks
Vampire Fish
Which one of the groups of marine animals below do NOT have jaws?
Hagfish
Fish
Reptiles
Birds
Mammals
To which of the fish groups do Coelacanth belong?
Lungfish
Bottom fish
Large carnivores
Sturgeons
Commercial Fishes
Why are reptiles usually found only in warm, tropical seas?
They are cold-blooded.
They only eat fish that exist in the warm, tropical areas.
The float better in warmer water than they do in cooler waters.
Reptiles are not limited to only warm, tropical seas but instead are found in all waters of the world.
They are hot-blooded.
Which of the following is NOT one of the four types of marine reptiles?
Gulf Alligators
Turtles
Marine Iguanas
Snakes
Ocean Crocodiles
What type of sea reptiles live only in the Galapagos Islands?
Marine Iguanas
Sea snakes
Marine crocodiles
Sea Turtles
Coelacanth
What is the only seabird that never comes onto the land?
Emperor penguins
Frigate birds
The albatross
Sea eagles
Parrot Fish
What has been the primary reason for the decline in Polar Bear numbers?
Overhunting
Global Warming
Lack of the polar bear's main food supplies.
Increasingly cold winters in the Arctic over the past 50 years.
The breakup of the polar ice cap has left many of them stranded or drowned.
Where can you find walruses in the wild?
The Arctic
The Antarctic
The South Pacific
The Indian Ocean
The South Atlantic
Which type of sea mammals have a fine mesh sieve in their mouths and feed on plankton and krill?
Baleen whales
Sperm whales
Killer whales
Dolphins
Porpoises
Why is there little sea life out past the continental shelf?
There is little plant life to provide food.
These areas of the oceans have been overfished.
Global warming has caused plant life to only be able to exist along the continental shelf.
The El Nino effect.
The big fish living there have depleted most of the smaller species.
Why is the Sargasso Sea have almost no phytoplankton?
There is no upwelling in this area to provide the nutrients phytoplankton need.
There is no zooplankton for them to eat.
Global warming has killed off the phytoplankton.
The El Nino effect.
This area has been cleaned out of phytoplankton by baleen whales.
What type of vessel uses sonar equipment to locate and entrap schools of fish?
Purse Seiners
Oceanic long-liners
Factory trawlers
Aquaculture ships
Fish finder ships
Currently, what percentage of the overall diet for humans comes from the sea?
One percent
Ten percent
Twenty five percent
Fifteen percent
Four percent
What development greatly increased the production of oysters in commercial oyster farms?
Suspension cultures
The elimination of all of the oyster's natural enemies
Adding nutritional supplements to the diet of oysters.
The cross-breeding of several different types of oysters.
Climate-controlled incubators
During daylight hours, how many deep scattering layers are there generally in the ocean?
Three
Five
One
Two
Four
Which of the following is NOT one of the four natural sources of luminescence?
Electroluminescence
Mineral phosphorus
Radioactive minerals
Cool gases
Bioluminescence
What is the source of the light produced by the single-celled phytoplankton, Dinoflagellata?
Bioluminescence
Mineral phosphorus
Radioactive minerals
Cool gasses
Electroluminescence
Why is the luminosity of seawater more than just an interesting natural wonder for naval ships and submarines?
Because it can give away the location of a ship or submarine at sea.
Because it can prevent ships and submarines from being spotted.
Because it can interfere with electrical systems on ships and subs.
Because it can interfere with the navigation systems on ships and subs.
Because it can interfere with the communications systems on ships and subs.
What is the name of the shrimp like animals that attack telephone, electric power and underwater pipelines?
Gribbles
Krill
Phytoplankton
Zooplankton
Ectoplankton
What is the largest of all fish in the ocean?
The tropical whale shark
Basking sharks
Baleen whales
White sharks
Killer whales
Which of the following oceans do NOT have sharks?
Sharks are found in all oceans
Indian Ocean
North Atlantic Ocean
Pacific Ocean
South Atlantic Ocean
Which of the following is NOT one of the most dangerous areas for shark attacks?
Hawaii
Australia
South Africa
Cuba
Panama
Which of the following is a type of shark that is not considered dangerous to humans?
Nurse shark
White shark
Hammerhead shark
Sand shark
Tiger shark
Which of the following is NOT a type of poisonous marine invertebrate?
Sea cucumbers
Bloodworms
Bristleworms
Sea urchins
Mollusks
What kind of poisonous marine invertebrates have stinging cells that are used to capture food?
Corals and sea anemones
Mollusks
Bloodworms
Bristleworms
Sea urchins
The Portuguese man-of-war belongs to what type of marine invertebrate group?
Hydroids
Jellyfish
Sea Anemones
Bristleworms
Mollusks
Octopus and squid belong to what group of marine invertebrates?
Mollusks
Hydroids
Bloodworms
Sea urchins
Tentacles
What is the greatest danger from an octopus?
It's bite.
The ink-like substance it shoots out.
Being grabbed by its tentacles.
It's sting.
There are no dangers associated with octopi.
Which of the following is NOT a species of fish which have venomous stings or bites?
Devilfish
Stingrays
Catfish
Weeverfish
Scorpionfish
Which of the following is NOT a member of the Scorpionfish family?
The Leopardfish
The Zebrafish
The Lionfish
The Stonefish
All of the fish listed are a part of the Scorpionfish family.
What underwater exploration invention was developed by Auguste Piccard in 1948?
The bathyscaphe
SCUBA gear
FLIP ship
The DSRV
Metal helmet diving suits
What name is given to scientists who live and perform research for extended periods of time underwater?
Aquanauts
Submarine scientists
Submariners
Bathobiologists
Immersionists
What is the Navy's major pollution problem in harbors, ports, channels and U.S. waters?
Oils and oily wastes
Heavy Metals
Radioactive materials
Domestic sewage
Biological pollutants
Mercury and barium are what form of pollutants?
Heavy metals
Radioactive materials
Synthetic fuels
Biological pollutants
Petroleum
Which of the following is an example of a biphenol pollutant?
Refrigerants
Pesticides
Heavy metals
Radioactive materials
Biological pollutants
Material that is designed to decay and break down naturally over time is referred to as what?
Biodegradable
Synthetic
Radioactive
Aneomorphic
Ecologically neutral
Why are high amounts of organic sewage bad for the ecology of enclosed water areas?
Because it causes plankton blooms that use up the available oxygen.
Because it kills off plankton, thereby depleting the food source for much of the ecosystem
Because it causes infections in the fish and animals in the water.
Because it dramatically increases the oxygen level of the water.
Because it causes excessive growth in the fish and animals species in the water area.
What U.S. Navy sewage system enables sewage to be treated before it is discharged from a ship?
Marine Sanitation Devices (MSDs)
Collection, Holding, and Transfer Systems (CHTs)
Anti-Biological Treatment Containers (ABTCs)
Sewage Processing and Treatment Systems (SPTSs)
Light Water Processing Plants (LWPPs)
If waste products are to be dumped from U.S. Navy ships, how far off the shore must the ship be?
At least 12 miles
At least 12 Kilometers
50 miles
100 miles
Waste products cannot be legally dumped off of U.S. Navy ships at sea.