Question 1

The epipelagic refers to the location of pelagic animals that can extend down to:

Accepted Answer

A)  10 m. 
B)  20 m. 
C)  100 m. 
D)  200 m. 
E)  1000 m. 
A)  10 m. 
B)  20 m. 
C)  100 m. 
D)  200 m. 
E)  1000 m.

Question 2

What is the deep scattering layer? How was it discovered? What organisms commonly compose this layer?

Accepted Answer

The deep scattering layer is a dense lay

Question 3

Match the species with its most closely associated size/ trophic level.
-Mesozooplankton

Accepted Answer

A) copepods 
B) krill 
C) foraminiferans 
A) copepods 
B) krill 
C) foraminiferans

Question 4

Megaplanktonic molluscs without a shell are called:

Accepted Answer

A)  cephalopods. 
B)  thecosome pteropods. 
C)  gymnosome pteropods. 
D)  nudibranchs. 
E)  oceanic limpets. 
A)  cephalopods. 
B)  thecosome pteropods. 
C)  gymnosome pteropods. 
D)  nudibranchs. 
E)  oceanic limpets.

Question 5

The primary organisms that make up the deep scattering layer are:

Accepted Answer

A)  zooplankton and fishes. 
B)  phytoplankton. 
C)  seston. 
D)  nanoplankton. 
E)  marine snow animals. 
A)  zooplankton and fishes. 
B)  phytoplankton. 
C)  seston. 
D)  nanoplankton. 
E)  marine snow animals.

Question 6

Describe the open-ocean planktonic food chain, and elaborate on why its supports few large animals.

Accepted Answer

The nutrient-poor open ocean food chain

Question 7

Describe at least 3 of the adaptations used by plankton in their efforts to remain near the surface.

Accepted Answer

Plankton employ a number of adaptations

Question 8

Match the size with the most closely associated plankton type.
-Mesoplankton

Accepted Answer

A) 2.0 mm 
B) 0.02 mm 
C) 200 mm 
D) 20 mm 
A) 2.0 mm 
B) 0.02 mm 
C) 200 mm 
D) 20 mm

Question 9

Archaeans and bacteria are generally included in the:

Accepted Answer

A)  seston. 
B)  tripton. 
C)  bacterioplankton. 
D)  viriplankton. 
E)  pleuston. 
A)  seston. 
B)  tripton. 
C)  bacterioplankton. 
D)  viriplankton. 
E)  pleuston.

Question 10

Nutrient-rich microenvironments can occur in the open ocean around:

Accepted Answer

A)  viriplankton. 
B)  discarded larvacean houses. 
C)  marine snow. 
D)  b and c 
A)  viriplankton. 
B)  discarded larvacean houses. 
C)  marine snow. 
D)  b and c

Question 11

Match the size with the most closely associated plankton type.
-Femtoplankton

Accepted Answer

A) 0.02 $\mu$m 
B) 2.0 $\mu$m 
C) 0.2 $\mu$m 
A) 0.02 $\mu$m 
B) 2.0 $\mu$m 
C) 0.2 $\mu$m

Question 12

Many zooplankton migrate daily from the DSL to the epipelagic zone.

Accepted Answer

A) True 
 B)False

Question 13

Which non-mammal organism has a connection to supply nutrients to developing embryos similar to the mammals?

Accepted Answer

A)  sea snake 
B)  sea turtles 
C)  hammerhead shark 
D)  manta ray 
E)  sea turtle 
A)  sea snake 
B)  sea turtles 
C)  hammerhead shark 
D)  manta ray 
E)  sea turtle

Question 14

Coastal upwelling is a common source of nutrients in the open ocean.

Accepted Answer

A) True 
 B)False

Question 15

In tropical water, the photic zone in the open ocean can extend down to:

Accepted Answer

A)  10 m. 
B)  20 m. 
C)  100 m. 
D)  200 m. 
E)  1000 m. 
A)  10 m. 
B)  20 m. 
C)  100 m. 
D)  200 m. 
E)  1000 m.

Question 16

Match the size with the most closely associated plankton type.
-Megaplankton

Accepted Answer

A) 2.0 mm 
B) 0.02 mm 
C) 200 mm 
D) 20 mm 
A) 2.0 mm 
B) 0.02 mm 
C) 200 mm 
D) 20 mm

Question 17

The primary reason for the daylight migration of many pelagic animals to deeper waters is:

Accepted Answer

A)  escape from visual predators. 
B)  escape from the harmful effects of the sun. 
C)  preference for the colder waters of the deep. 
D)  the abundance of food in deeper waters. 
A)  escape from visual predators. 
B)  escape from the harmful effects of the sun. 
C)  preference for the colder waters of the deep. 
D)  the abundance of food in deeper waters.

Question 18

Trace the open ocean microbial loop, starting with DOM released by unicells, and follow how it is reprocessed through the bodies of various microorganisms, finally leading up in the bodies of zooplankton.

Accepted Answer

Single cell organisms are inherently lea

Question 19

Match the characteristic with the species.
-Ocean Sunfish

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 20

Match the phenomena with a closely associated term.
-Macropatchines

Accepted Answer

A) aggregations of nekton 
B) migratory zooplankton 
C) marine snow 
A) aggregations of nekton 
B) migratory zooplankton 
C) marine snow

The epipelagic refers to the location of pelagic animals that can extend down to:

What is the deep scattering layer? How was it discovered? What organisms commonly compose this layer?

Match the species with its most closely associated size/ trophic level. -Mesozooplankton

Megaplanktonic molluscs without a shell are called:

The primary organisms that make up the deep scattering layer are:

Describe the open-ocean planktonic food chain, and elaborate on why its supports few large animals.

Describe at least 3 of the adaptations used by plankton in their efforts to remain near the surface.

Match the size with the most closely associated plankton type. -Mesoplankton

Archaeans and bacteria are generally included in the:

Nutrient-rich microenvironments can occur in the open ocean around:

Match the size with the most closely associated plankton type. -Femtoplankton

Many zooplankton migrate daily from the DSL to the epipelagic zone.

Which non-mammal organism has a connection to supply nutrients to developing embryos similar to the mammals?

Coastal upwelling is a common source of nutrients in the open ocean.

In tropical water, the photic zone in the open ocean can extend down to:

Match the size with the most closely associated plankton type. -Megaplankton

The primary reason for the daylight migration of many pelagic animals to deeper waters is:

Trace the open ocean microbial loop, starting with DOM released by unicells, and follow how it is reprocessed through the bodies of various microorganisms, finally leading up in the bodies of zooplankton.

Match the characteristic with the species. -Ocean Sunfish

Match the phenomena with a closely associated term. -Macropatchines

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

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Exam 17: The Open Sea

The epipelagic refers to the location of pelagic animals that can extend down to:

What is the deep scattering layer? How was it discovered? What organisms commonly compose this layer?

Match the species with its most closely associated size/ trophic level. -Mesozooplankton

Megaplanktonic molluscs without a shell are called:

The primary organisms that make up the deep scattering layer are:

Describe the open-ocean planktonic food chain, and elaborate on why its supports few large animals.

Describe at least 3 of the adaptations used by plankton in their efforts to remain near the surface.

Match the size with the most closely associated plankton type. -Mesoplankton

Archaeans and bacteria are generally included in the:

Nutrient-rich microenvironments can occur in the open ocean around:

Match the size with the most closely associated plankton type. -Femtoplankton

Many zooplankton migrate daily from the DSL to the epipelagic zone.

Which non-mammal organism has a connection to supply nutrients to developing embryos similar to the mammals?

Coastal upwelling is a common source of nutrients in the open ocean.

In tropical water, the photic zone in the open ocean can extend down to:

Match the size with the most closely associated plankton type. -Megaplankton

The primary reason for the daylight migration of many pelagic animals to deeper waters is:

Trace the open ocean microbial loop, starting with DOM released by unicells, and follow how it is reprocessed through the bodies of various microorganisms, finally leading up in the bodies of zooplankton.

Match the characteristic with the species. -Ocean Sunfish

Match the phenomena with a closely associated term. -Macropatchines

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