Question 1

Salinity refers to all of the solid materials in seawater,both dissolved and visible.

Accepted Answer

A) True 
 B)False

Question 2

Thermoclines in the ocean are best developed at ________.

Accepted Answer

A)  lower latitudes
B)  higher latitudes
C)  both high and low latitudes
D)  regions close to continentsE) B) and D)
F) A) and D)

Question 3

________ refers to the change in temperature with depth in the ocean.

Accepted Answer

The answer of ________ refers to the change in temperature...

Question 4

Hydrothermal vents provide a unique deep sea environment that supports abundant life because ________.

Accepted Answer

A)  the hydrothermal vents support photosynthesis so there is abundant food
B)  the density of the seawater is less and this allows organisms more mobility
C)  the heat from the hydrothermal vents provides a more hospitable environment to support life
D)  food carried in the hydrothermal fluids provides a hospitable environment to support abundant lifeE) B) and C)
F) A) and D)

Question 5

Seawater contains all of the natural occurring elements on earth.

Accepted Answer

A) True 
 B)False

Question 6

Among plankton,animals that drift on ocean currents are specifically known as ________.

Accepted Answer

The answer of Among plankton,animals that drift on ocean currents...

Question 7

The upper part of the ocean into which sunlight penetrates is called the photic zone.

Accepted Answer

A) True 
 B)False

Question 8

Between 25° and 35° latitude,salinity is likely to be ________.

Accepted Answer

A)  high
B)  low
C)  average
D)  seasonally variableE) A) and D)
F) A) and C)

Question 9

The advantage for fishers to choose a population that feeds close to the primary producing population is that ________.

Accepted Answer

A)  it is easier to recover more biomass from the fish because they have not wasted energy swimming after food
B)  there will be a bigger variety of food available in those locations because there will be several trophic levels available
C)  they will be close to shore so it is easier to fish those regions
D)  energy transfer between trophic levels is inefficient and this will increase the available biomass
E)  none of the aboveF) B) and E)
G) C) and E)

Question 10

Feeding stages in the food chain are known as trophic levels.

Accepted Answer

A) True 
 B)False

Question 11

The Atlantic Ocean is saltier than the other oceans on Earth because ________.

Accepted Answer

A)  it spans all of the latitudes
B)  it is getting smaller and this decrease the surface area for salt to evaporate.
C)  it is getting larger,and this increases the area where salt can flow into the ocean
D)  it has less rainfall and runoff and more evaporation than other oceans
E)  it has more rainfall and runoff and less evaporation than other oceansF) D) and E)
G) All of the above

Question 12

The pycnocline is a rapid change in ________ with depth in the ocean.

Accepted Answer

The answer of The pycnocline is a rapid change in...

Question 13

________ refers to the total amount of dissolved materials in water.

Accepted Answer

The answer of ________ refers to the total amount of...

Question 14

The surface mixed zone is characterized by ________.

Accepted Answer

A)  nearly constant temperatures to a depth of about 300 meters
B)  a rapid change from warm temperatures on top to cold temperatures at a depth of about 300 meters
C)  high density water near the surface that rapidly decreases in density with depth
D)  low density water near the surface that rapidly increases in density with depth
E)  a mixture of temperatures and densities to a depth of about 300 to 450 meters depth.F) A) and E)
G) C) and E)

Question 15

Productivity in the oceans is highest in tropical regions.

Accepted Answer

A) True 
 B)False

Question 16

The deep zone makes up about 80% of the ocean waters and it is characterized by ________.

Accepted Answer

A)  water that gradually decreases in temperature and density with depth
B)  water that gradually increases in temperature and density with depth
C)  water that gradually increases in temperature and decreases in density with depth
D)  water that gradually decreases in temperature and increases in density with depth
E)  water with relatively uniform temperature and density throughoutF) A) and B)
G) None of the above

Question 17

Temperatures in the deep oceans are ________ at low latitudes compared to high latitudes.

Accepted Answer

A)  higher
B)  lower
C)  about the same
D)  highly variable
E)  very constantF) A) and C)
G) C) and D)

Question 18

On the deep seafloor,organisms are widely distributed ________.

Accepted Answer

A)  because there is little variation and no photosynthesis
B)  to avoid predators
C)  because they have eaten most of their near neighbors
D)  because it is too cold to move and reproduction is slowE) A) and B)
F) All of the above

Question 19

The total amount of solid material dissolved in water is known as ________.

Accepted Answer

A)  load
B)  salinity
C)  solute
D)  insoluble residueE) A) and B)
F) A) and C)

Question 20

What happens when fresh water flows into seawater?

Accepted Answer

A)  They mix completely.
B)  The sea water covers the fresh water.
C)  The fresh water covers the sea water.
D)  There is a continuous gradation from fresh water on top to sea water on the bottom.
E)  There is a continuous gradation from seawater on top to fresh water on the bottom.F) A) and C)
G) C) and D)

Exam 14: Ocean Water and Ocean Life

Thermoclines in the ocean are best developed at ________.

Correct AnswerverifiedShow Answer

Hydrothermal vents provide a unique deep sea environment that supports abundant life because ________.

Correct AnswerverifiedShow Answer

________ refers to the change in temperature with depth in the ocean.

Correct AnswerverifiedShow Answer

Among plankton,animals that drift on ocean currents are specifically known as ________.

Correct AnswerverifiedShow Answer

Feeding stages in the food chain are known as trophic levels.

Correct AnswerverifiedShow Answer

Temperatures in the deep oceans are ________ at low latitudes compared to high latitudes.

Correct AnswerverifiedShow Answer

The total amount of solid material dissolved in water is known as ________.

Correct AnswerverifiedShow Answer

Productivity in the oceans is highest in tropical regions.

Correct AnswerverifiedShow Answer

Seawater contains all of the natural occurring elements on earth.

Correct AnswerverifiedShow Answer

The pycnocline is a rapid change in ________ with depth in the ocean.

Correct AnswerverifiedShow Answer

The advantage for fishers to choose a population that feeds close to the primary producing population is that ________.

Correct AnswerverifiedShow Answer

The Atlantic Ocean is saltier than the other oceans on Earth because ________.

Correct AnswerverifiedShow Answer

What happens when fresh water flows into seawater?

Correct AnswerverifiedShow Answer

Between 25° and 35° latitude,salinity is likely to be ________.

Correct AnswerverifiedShow Answer

Salinity refers to all of the solid materials in seawater,both dissolved and visible.

Correct AnswerverifiedShow Answer

The upper part of the ocean into which sunlight penetrates is called the photic zone.

Correct AnswerverifiedShow Answer

On the deep seafloor,organisms are widely distributed ________.

Correct AnswerverifiedShow Answer

________ refers to the total amount of dissolved materials in water.

Correct AnswerverifiedShow Answer

The deep zone makes up about 80% of the ocean waters and it is characterized by ________.

Correct AnswerverifiedShow Answer

The surface mixed zone is characterized by ________.

Correct AnswerverifiedShow Answer

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