Question 1

Match the characteristic with the most closely associated organism.
-Thecoscome pteropod

Accepted Answer

A) winged, shell absent 
B) winged, small shell 
C) bubble raft 
A) winged, shell absent 
B) winged, small shell 
C) bubble raft

Question 2

Match the characteristic with the most closely associated organism.
-Purple sea snail

Accepted Answer

A) winged, shell absent 
B) winged, small shell 
C) bubble raft 
A) winged, shell absent 
B) winged, small shell 
C) bubble raft

Question 3

All of the following are adaptations against sinking in the open ocean except:

Accepted Answer

A)  long spines and projections. 
B)  lipid droplets. 
C)  dense tissues. 
D)  gas bladders. 
E)  small size. 
A)  long spines and projections. 
B)  lipid droplets. 
C)  dense tissues. 
D)  gas bladders. 
E)  small size.

Question 4

Common nekton include

Accepted Answer

A)  tuna. 
B)  billfish. 
C)  jelly fish. 
D)  both a and b 
E)  both b and c 
A)  tuna. 
B)  billfish. 
C)  jelly fish. 
D)  both a and b 
E)  both b and c

Question 5

Which organism is considered part of the nekton?

Accepted Answer

A)  frigate bird 
B)  penguin 
C)  cormorant 
D)  snowy plover 
E)  albatross 
A)  frigate bird 
B)  penguin 
C)  cormorant 
D)  snowy plover 
E)  albatross

Question 6

MATCHING
Match the organism group with its most closely associated classification group.
-Classified by taxonomic group

Accepted Answer

A) Kinetic plankton 
B) Bacterioplankton 
C) Macroplankton 
D) Meroplankton 
A) Kinetic plankton 
B) Bacterioplankton 
C) Macroplankton 
D) Meroplankton

Question 7

Match the characteristic with the species.
-Tuna

Accepted Answer

A) lack swim bladder 
B) cartilage layer 
C) lack teeth 
D) viviparous 
A) lack swim bladder 
B) cartilage layer 
C) lack teeth 
D) viviparous

Question 8

Salps play an important ecological role as consumers of:

Accepted Answer

A)  bacteria. 
B)  diatoms. 
C)  krill. 
D)  fish larvae. 
E)  jellyfish. 
A)  bacteria. 
B)  diatoms. 
C)  krill. 
D)  fish larvae. 
E)  jellyfish.

Question 9

All the following are used to classify plankton except:

Accepted Answer

A)  taxonomic groups. 
B)  functional groups. 
C)  life history. 
D)  light spectrum requirements. 
E)  size. 
A)  taxonomic groups. 
B)  functional groups. 
C)  life history. 
D)  light spectrum requirements. 
E)  size.

Question 10

Those organisms that remain planktonic for their whole lives are called:

Accepted Answer

A)  meroplankton. 
B)  holoplankton. 
C)  nanoplankton. 
D)  seston. 
E)  nekton. 
A)  meroplankton. 
B)  holoplankton. 
C)  nanoplankton. 
D)  seston. 
E)  nekton.

Question 11

Match the organism group with its most closely associated classification group.
-Life history

Accepted Answer

A) Microplankton 
B) Holoplankton 
C) Nekton 
D) Viriplankton 
A) Microplankton 
B) Holoplankton 
C) Nekton 
D) Viriplankton

Question 12

Pelagic organisms live:

Accepted Answer

A)  in the water column. 
B)  on the sediment. 
C)  in the sediment. 
D)  in hydrothermal vents. 
E)  close to shore. 
A)  in the water column. 
B)  on the sediment. 
C)  in the sediment. 
D)  in hydrothermal vents. 
E)  close to shore.

Question 13

Physically, the open ocean is a very stable environment.

Accepted Answer

A) True 
 B)False

Question 14

Common megaplankton of the open ocean include all but

Accepted Answer

A)  cnidarians. 
B)  mollusks. 
C)  gelatinous zooplankton. 
D)  diatoms. 
E)  salps. 
A)  cnidarians. 
B)  mollusks. 
C)  gelatinous zooplankton. 
D)  diatoms. 
E)  salps.

Question 15

Salps and amphipods of the genus Phronima have a commensal symbiosis.

Accepted Answer

A) True 
 B)False

Question 16

The deep scattering layer refers to:

Accepted Answer

A)  an area where organisms are spread apart in a random manner. 
B)  a dense aggregation of migratory zooplankton and fish. 
C)  a safe area where zooplankton can quickly scatter to avoid predators. 
D)  where sonar from whales travels rapidly to facilitate their communication. 
E)  the abyssal zone. 
A)  an area where organisms are spread apart in a random manner. 
B)  a dense aggregation of migratory zooplankton and fish. 
C)  a safe area where zooplankton can quickly scatter to avoid predators. 
D)  where sonar from whales travels rapidly to facilitate their communication. 
E)  the abyssal zone.

Question 17

Match the species with its most closely associated trophic level.
-Herbivore

Accepted Answer

A) krill 
B) diatoms 
C) copepods 
D) squid 
A) krill 
B) diatoms 
C) copepods 
D) squid

Question 18

Each day the animals of the deep scattering layer

Accepted Answer

A)  must form mucus nets to protect themselves from predators. 
B)  make a nocturnal migration to the DSL to feed. 
C)  make a nocturnal migration to the epipelagic to feed. 
D)  make a daytime migration to the epipelagic to feed. 
E)  migrate to a depth of 1.6 km to feed. 
A)  must form mucus nets to protect themselves from predators. 
B)  make a nocturnal migration to the DSL to feed. 
C)  make a nocturnal migration to the epipelagic to feed. 
D)  make a daytime migration to the epipelagic to feed. 
E)  migrate to a depth of 1.6 km to feed.

Question 19

All of the following are adaptations against predation in the open ocean except:

Accepted Answer

A)  transparent bodies. 
B)  colorful bodies. 
C)  colonial lifestyles. 
D)  countershading. 
E)  silvery coloration. 
A)  transparent bodies. 
B)  colorful bodies. 
C)  colonial lifestyles. 
D)  countershading. 
E)  silvery coloration.

Question 20

Match the location with its most closely associated group.
-Holoplankton

Accepted Answer

A) entire life in water column 
B) part of life in water column 
C) animals live at or near the surface 
A) entire life in water column 
B) part of life in water column 
C) animals live at or near the surface

Match the characteristic with the most closely associated organism. -Thecoscome pteropod

Match the characteristic with the most closely associated organism. -Purple sea snail

All of the following are adaptations against sinking in the open ocean except:

Common nekton include

Which organism is considered part of the nekton?

MATCHING Match the organism group with its most closely associated classification group. -Classified by taxonomic group

Match the characteristic with the species. -Tuna

Salps play an important ecological role as consumers of:

All the following are used to classify plankton except:

Those organisms that remain planktonic for their whole lives are called:

Match the organism group with its most closely associated classification group. -Life history

Pelagic organisms live:

Physically, the open ocean is a very stable environment.

Common megaplankton of the open ocean include all but

Salps and amphipods of the genus Phronima have a commensal symbiosis.

The deep scattering layer refers to:

Match the species with its most closely associated trophic level. -Herbivore

Each day the animals of the deep scattering layer

All of the following are adaptations against predation in the open ocean except:

Match the location with its most closely associated group. -Holoplankton

Science and Marine Biology

Fundamentals of Ecology

Geology of the Ocean

Water, Waves, and Tides

Biological Concepts

Marine Microbes

Multicellular Primary Producers

Lower Invertebrates

Higher Invertebrates

Marine Fishes

Reptiles and Birds

Marine Mammals

Intertidal Communities

Estuaries

Coral Reef Communities

Continental Shelves and Neritic Zone

Life in the Oceans Depths

Harvesting the Oceans Resources

Oceans in Jeopardy

Filters

Exam 17: The Open Sea

Match the characteristic with the most closely associated organism. -Thecoscome pteropod

Match the characteristic with the most closely associated organism. -Purple sea snail

All of the following are adaptations against sinking in the open ocean except:

Common nekton include

Which organism is considered part of the nekton?

MATCHING Match the organism group with its most closely associated classification group. -Classified by taxonomic group

Match the characteristic with the species. -Tuna

Salps play an important ecological role as consumers of:

All the following are used to classify plankton except:

Those organisms that remain planktonic for their whole lives are called:

Match the organism group with its most closely associated classification group. -Life history

Pelagic organisms live:

Physically, the open ocean is a very stable environment.

Common megaplankton of the open ocean include all but

Salps and amphipods of the genus Phronima have a commensal symbiosis.

The deep scattering layer refers to:

Match the species with its most closely associated trophic level. -Herbivore

Each day the animals of the deep scattering layer

All of the following are adaptations against predation in the open ocean except:

Match the location with its most closely associated group. -Holoplankton

Science and Marine Biology

Fundamentals of Ecology

Geology of the Ocean

Water, Waves, and Tides

Biological Concepts

Marine Microbes

Multicellular Primary Producers

Lower Invertebrates

Higher Invertebrates

Marine Fishes

Reptiles and Birds

Marine Mammals

Intertidal Communities

Estuaries

Coral Reef Communities

Continental Shelves and Neritic Zone

Life in the Oceans Depths

Harvesting the Oceans Resources

Oceans in Jeopardy

Filters