Marine Science - Final Exam Study Guide - Units 1-3

Be able to differentiate between an ROV and an AUV.

• ROV is tethered to a ship and controlled by humans, while AUV is autonomous and not tethered.

• ROV is autonomous and not tethered, while AUV is tethered to a ship and controlled by humans.

• Both ROV and AUV are tethered to a ship and controlled by humans.

• Both ROV and AUV are autonomous and not tethered.

What trophic level are organisms who can produce their own food?

• Primary producer.

• Primary consumer.

• Secondary consumer.

• Tertiary consumer.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Know what a CTD measures.

• Salinity, temperature, and depth.

• Pressure, humidity, and wind speed.

• pH level, turbidity, and oxygen concentration.

• Wave height, current speed, and tide level.

Differentiate between euphotic, disphotic, and aphotic.

• Euphotic - enough light for photosynthesis; Disphotic - twilight zone; Aphotic - no light.

• Euphotic - no light; Disphotic - enough light for photosynthesis; Aphotic - twilight zone.

• Euphotic - twilight zone; Disphotic - no light; Aphotic - enough light for photosynthesis.

• Euphotic - twilight zone; Disphotic - enough light for photosynthesis; Aphotic - no light.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What causes a decrease in oxygen below the sunlit layer?

• The respiration of marine animals and bacteria use up all the oxygen.

• Photosynthesis increases oxygen levels below the sunlit layer.

• Oxygen is absorbed by the ocean floor sediments.

• The presence of underwater volcanoes consumes oxygen.

Tags

NGSS.MS-LS1-6

What causes the density of seawater to increase?

• An increase in salinity.

• A decrease in salinity.

• An increase in temperature.

• A decrease in pressure.

Differentiate between Multibeam and Sidescan SONAR.

• Multibeam SONAR provides colorful 3D maps, while Sidescan SONAR provides black and white maps.

• Multibeam SONAR provides black and white maps, while Sidescan SONAR provides colorful 3D maps.

• Both Multibeam and Sidescan SONAR provide colorful 3D maps.

• Both Multibeam and Sidescan SONAR provide black and white maps.

Tags

NGSS.HS-PS4-5

What does a refractometer measure?

• Temperature

• Pressure

• Refractive index

• Humidity

Be able to describe what a hydrothermal vent is.

• A spring of hot, mineral and gas rich seawater found on some ocean ridges where seafloor spreading is happening.

• A cold water spring found in the deep ocean.

• A type of coral reef found in shallow waters.

• A freshwater spring found in mountainous regions.

Tags

NGSS.MS-LS2-3

What is the deepest place on Earth?

• Mariana Trench

• Tonga Trench

• Java Trench

• Puerto Rico Trench