Question 1

All of the following adaptations offset sinking in fish EXCEPT:

Accepted Answer

A)  swim bladders. 
B)  counter current flow in gills. 
C)  fat-filled bladders. 
D)  fins shaped like airplane wings. 
A)  swim bladders. 
B)  counter current flow in gills. 
C)  fat-filled bladders. 
D)  fins shaped like airplane wings. D

Question 2

____ refers to organisms that live on or are associated with the bottom.

Accepted Answer

A)  Pelagic 
B)  Neritic 
C)  Planktonic 
D)  Benthic 
A)  Pelagic 
B)  Neritic 
C)  Planktonic 
D)  Benthic D

Question 3

Describe at least 3 ways that marine mammals are adapted to life in the marine environment.

Accepted Answer

Although marine mammals evolved from terrestrial mammals, they have many unique adaptations that have enables them to succeed and diversify in the ocean. All marine mammals have a streamlined body shape with limbs adapted for swimming (not walking). Marine mammals can also generate internal body heat that can be stored by dense fur, or in fat and blubber. Because they are air-breathers, they have a respiratory system that is modified to collect and retain large amounts of oxygen. The biochemistry of the blood and muscles is optimal for the retention and distribution of oxygen during prolonged deep dives.

Question 4

The active swimmers of the pelagic realm are called the zooplankton.

Accepted Answer

A) True 
 B)False

Question 5

An example of a zooplankton that is very important to many pelagic communities is:

Accepted Answer

A)  krill. 
B)  squid. 
C)  dinoflagellates. 
D)  diatoms. 
A)  krill. 
B)  squid. 
C)  dinoflagellates. 
D)  diatoms.

Question 6

All of the following characteristics apply to the Cetacea EXCEPT:

Accepted Answer

A)  Cetaceans have nearly complete hair loss. 
B)  They have large and deeply convoluted brains. 
C)  The cetaceans are air-breathing mammals. 
D)  They all have teeth in powerful jaws that make them efficient predators. 
A)  Cetaceans have nearly complete hair loss. 
B)  They have large and deeply convoluted brains. 
C)  The cetaceans are air-breathing mammals. 
D)  They all have teeth in powerful jaws that make them efficient predators.

Question 7

Coccolithophores are zooplankton that form oozes on the seabed.

Accepted Answer

A) True 
 B)False

Question 8

The "seals" of seal shows are:

Accepted Answer

A)  sea lions. 
B)  true seals. 
C)  sea otters. 
D)  manatees. 
A)  sea lions. 
B)  true seals. 
C)  sea otters. 
D)  manatees.

Question 9

Baleen whales are:

Accepted Answer

A)  in the suborder Odontoceti. 
B)  in the suborder Mysticeti. 
C)  in the class Osteichthyes. 
D)  are in the order Teleostei. 
A)  in the suborder Odontoceti. 
B)  in the suborder Mysticeti. 
C)  in the class Osteichthyes. 
D)  are in the order Teleostei.

Question 10

What is produced in primary productivity?

Accepted Answer

A)  carbon dioxide 
B)  light 
C)  carbohydrates 
D)  gametes (egg cells and sperm cells) 
A)  carbon dioxide 
B)  light 
C)  carbohydrates 
D)  gametes (egg cells and sperm cells)

Question 11

Which of the following statements is FALSE regarding the global distribution of phytoplankton?

Accepted Answer

A)  In the poles, phytoplankton populations decrease during the summer months. 
B)  There is a constant amount of phytoplankton year-round in the tropics. 
C)  Phytoplankton are most abundant when there are ample nutrients and light. 
D)  Phytoplankton populations vary with latitude and season. 
A)  In the poles, phytoplankton populations decrease during the summer months. 
B)  There is a constant amount of phytoplankton year-round in the tropics. 
C)  Phytoplankton are most abundant when there are ample nutrients and light. 
D)  Phytoplankton populations vary with latitude and season.

Question 12

Identify the statement that best describes the adaptations of "true seabirds" (that is, birds spending nearly all of their life span aloft over the ocean).

Accepted Answer

A)  their wings tend to be short and blunt to reduce weight during flight. 
B)  their bodies are covered in specialized feathers that differ from other bird species. 
C)  their wingspan is very long and their bones are hollow to minimize the energy expended in flight. 
D)  their bodies are insulated with layers of fat to protect them from cold at high altitudes. 
A)  their wings tend to be short and blunt to reduce weight during flight. 
B)  their bodies are covered in specialized feathers that differ from other bird species. 
C)  their wingspan is very long and their bones are hollow to minimize the energy expended in flight. 
D)  their bodies are insulated with layers of fat to protect them from cold at high altitudes.

Question 13

An important animal in the food web of Antarctica is (are):

Accepted Answer

A)  krill. 
B)  foraminifera. 
C)  diatoms. 
D)  ctenophores. 
A)  krill. 
B)  foraminifera. 
C)  diatoms. 
D)  ctenophores.

Question 14

Explain why phytoplankton is critical to all of life on Earth.

Accepted Answer

Phytoplankton are microscopic organisms

Question 15

Drag is determined by all of the following EXCEPT:

Accepted Answer

A)  frontal area. 
B)  body shape. 
C)  surface texture. 
D)  depth. 
A)  frontal area. 
B)  body shape. 
C)  surface texture. 
D)  depth.

Question 16

An example of an oceanic bird that can forage across the open ocean for months is the:

Accepted Answer

A)  sea gull. 
B)  albatross. 
C)  pelican. 
D)  sandpiper. 
A)  sea gull. 
B)  albatross. 
C)  pelican. 
D)  sandpiper.

Question 17

Which of the following is NOT an Order of marine mammals?

Accepted Answer

A)  Cetacea 
B)  Pinnipedia 
C)  Sirenia 
D)  Ecinodermata 
A)  Cetacea 
B)  Pinnipedia 
C)  Sirenia 
D)  Ecinodermata

Question 18

Which of the following groups include manatees and sea cows.?

Accepted Answer

A)  Cetacea 
B)  Pinnipedia 
C)  Sirenia 
D)  Copepoda 
A)  Cetacea 
B)  Pinnipedia 
C)  Sirenia 
D)  Copepoda

Question 19

Bony fish (like tuna or anchovies) are members of this group:

Accepted Answer

A)  Mammalia 
B)  Chondrichthyes 
C)  Osteichthyes 
D)  Agnatha 
A)  Mammalia 
B)  Chondrichthyes 
C)  Osteichthyes 
D)  Agnatha

Question 20

Sharks have skeletons made of cartilage, not bone.

Accepted Answer

A) True 
 B)False

All of the following adaptations offset sinking in fish EXCEPT:

____ refers to organisms that live on or are associated with the bottom.

Describe at least 3 ways that marine mammals are adapted to life in the marine environment.

The active swimmers of the pelagic realm are called the zooplankton.

An example of a zooplankton that is very important to many pelagic communities is:

All of the following characteristics apply to the Cetacea EXCEPT:

Coccolithophores are zooplankton that form oozes on the seabed.

The "seals" of seal shows are:

Baleen whales are:

What is produced in primary productivity?

Which of the following statements is FALSE regarding the global distribution of phytoplankton?

Identify the statement that best describes the adaptations of "true seabirds" (that is, birds spending nearly all of their life span aloft over the ocean).

An important animal in the food web of Antarctica is (are):

Explain why phytoplankton is critical to all of life on Earth.

Drag is determined by all of the following EXCEPT:

An example of an oceanic bird that can forage across the open ocean for months is the:

Which of the following is NOT an Order of marine mammals?

Which of the following groups include manatees and sea cows.?

Bony fish (like tuna or anchovies) are members of this group:

Sharks have skeletons made of cartilage, not bone.

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Tides

Coasts

Life in the Ocean

Benthic Communities

Uses and Abuses of the Ocean

Filters

Exam 13: Pelagic Communities

All of the following adaptations offset sinking in fish EXCEPT:

____ refers to organisms that live on or are associated with the bottom.

Describe at least 3 ways that marine mammals are adapted to life in the marine environment.

The active swimmers of the pelagic realm are called the zooplankton.

An example of a zooplankton that is very important to many pelagic communities is:

All of the following characteristics apply to the Cetacea EXCEPT:

Coccolithophores are zooplankton that form oozes on the seabed.

The "seals" of seal shows are:

Baleen whales are:

What is produced in primary productivity?

Which of the following statements is FALSE regarding the global distribution of phytoplankton?

Identify the statement that best describes the adaptations of "true seabirds" (that is, birds spending nearly all of their life span aloft over the ocean).

An important animal in the food web of Antarctica is (are):

Explain why phytoplankton is critical to all of life on Earth.

Drag is determined by all of the following EXCEPT:

An example of an oceanic bird that can forage across the open ocean for months is the:

Which of the following is NOT an Order of marine mammals?

Which of the following groups include manatees and sea cows.?

Bony fish (like tuna or anchovies) are members of this group:

Sharks have skeletons made of cartilage, not bone.

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Tides

Coasts

Life in the Ocean

Benthic Communities

Uses and Abuses of the Ocean

Filters