Question 1

Sea otters are known to affect the development of giant kelp forests by:

Accepted Answer

A) Helping in the dispersion of spores. 
B) Removing competing seaweeds. 
C) Feeding on carnivorous fishes. 
D) Feeding on grazing sea urchins. 
E) Releasing nutrients present in feces and urine. 
A) Helping in the dispersion of spores. 
B) Removing competing seaweeds. 
C) Feeding on carnivorous fishes. 
D) Feeding on grazing sea urchins. 
E) Releasing nutrients present in feces and urine.

Question 2

The concentration of nutrients in the waters over the continental shelf is typically:

Accepted Answer

A) Higher than in the open ocean. 
B) Lower than in the open ocean. 
C) About the same. 
D) No generalizations can be made: the amount of nutrients depends on the type of substrate. 
E) No generalizations can be made: the amount of nutrients depends on having or not having kelp. 
A) Higher than in the open ocean. 
B) Lower than in the open ocean. 
C) About the same. 
D) No generalizations can be made: the amount of nutrients depends on the type of substrate. 
E) No generalizations can be made: the amount of nutrients depends on having or not having kelp.

Question 3

By definition,kelp forests develop when:

Accepted Answer

A) Kelp fronds extend far enough to float on the surface. 
B) The kelp is large enough to rise off of the bottom. 
C) The kelp lives in warm water. 
D) The kelp fronds develop their leaves. 
E) The kelp holdfast is large enough to be called a true root system. 
A) Kelp fronds extend far enough to float on the surface. 
B) The kelp is large enough to rise off of the bottom. 
C) The kelp lives in warm water. 
D) The kelp fronds develop their leaves. 
E) The kelp holdfast is large enough to be called a true root system.

Question 4

The pattern of spatial distribution most often seen in soft-bottom subtidal communities:

Accepted Answer

A) Regular. 
B) Irregular. 
C) Random. 
D) Clumped. 
E) Patchy. 
A) Regular. 
B) Irregular. 
C) Random. 
D) Clumped. 
E) Patchy.

Question 5

Kelp communities are severely disturbed by all of the following except:

Accepted Answer

A) Grazing sea urchins. 
B) Grazing fishes. 
C) Pollution. 
D) Warm currents. 
E) El Ni-o. 
A) Grazing sea urchins. 
B) Grazing fishes. 
C) Pollution. 
D) Warm currents. 
E) El Ni-o.

Question 6

One of the following statements best describes the temperature and salinity of the deep water over the continental shelf:

Accepted Answer

A) It is typically very different from that of the surface as a result of light affecting only the surface. 
B) It is usually about the same along the entire water column as a result of the type of sediment. 
C) It is usually about the same along the entire water column as a result of currents and wave action. 
D) It is typically very different from that of the surface as a result of differences in nutrients. 
E) It is typically very different from that of the surface as a result of the higher density of surface water. 
A) It is typically very different from that of the surface as a result of light affecting only the surface. 
B) It is usually about the same along the entire water column as a result of the type of sediment. 
C) It is usually about the same along the entire water column as a result of currents and wave action. 
D) It is typically very different from that of the surface as a result of differences in nutrients. 
E) It is typically very different from that of the surface as a result of the higher density of surface water.

Question 7

The region with the largest number of seagrass species is:

Accepted Answer

A) East Pacific. 
B) Atlantic. 
C) Indo-West Pacific. 
D) Caribbean. 
E) Mediterranean. 
A) East Pacific. 
B) Atlantic. 
C) Indo-West Pacific. 
D) Caribbean. 
E) Mediterranean.

Question 8

The most important food source in unvegetated soft-bottom subtidal communities:

Accepted Answer

A) Plankton. 
B) Drift seaweeds. 
C) Nekton. 
D) Benthic prey. 
E) Detritus. 
A) Plankton. 
B) Drift seaweeds. 
C) Nekton. 
D) Benthic prey. 
E) Detritus.

Question 9

Which of the following organisms is most likely to be an epiphyte?

Accepted Answer

A) Algae 
B) Seagrass 
C) Mangroves 
D) Snails 
E) Crabs 
A) Algae 
B) Seagrass 
C) Mangroves 
D) Snails 
E) Crabs

Question 10

The plankton and nekton that inhabit the water column over the continental shelf are said to live in what zone?

Accepted Answer

A) Neritic zone 
B) Shelf break 
C) Benthic zone 
D) Abyssal zone 
E) Hadal zone 
A) Neritic zone 
B) Shelf break 
C) Benthic zone 
D) Abyssal zone 
E) Hadal zone

Sea otters are known to affect the development of giant kelp forests by:

The concentration of nutrients in the waters over the continental shelf is typically:

By definition,kelp forests develop when:

The pattern of spatial distribution most often seen in soft-bottom subtidal communities:

Kelp communities are severely disturbed by all of the following except:

One of the following statements best describes the temperature and salinity of the deep water over the continental shelf:

The region with the largest number of seagrass species is:

The most important food source in unvegetated soft-bottom subtidal communities:

Which of the following organisms is most likely to be an epiphyte?

The plankton and nekton that inhabit the water column over the continental shelf are said to live in what zone?

The Science of Marine Biology

The Sea Floor

Chemical and Physical Features of Seawater and the World Ocean

Fundamentals of Biology

The Microbial World

Multicellular Primary Producers: Seaweeds and Plants

Marine Animals Without a Backbone

Marine Fishes

Marine Reptiles, Birds, and Mammals

An Introduction to Marine Ecology

Between the Tides

Estuaries: Where Rivers Meet the Sea

Coral Reefs

Life Near the Surface

The Ocean Depths

Resources From the Sea

The Impact of Humans on the Marine Environment

The Oceans and Human Affairs

Filters

Exam 13: Life on the Continental Shelf

Sea otters are known to affect the development of giant kelp forests by:

The concentration of nutrients in the waters over the continental shelf is typically:

By definition,kelp forests develop when:

The pattern of spatial distribution most often seen in soft-bottom subtidal communities:

Kelp communities are severely disturbed by all of the following except:

One of the following statements best describes the temperature and salinity of the deep water over the continental shelf:

The region with the largest number of seagrass species is:

The most important food source in unvegetated soft-bottom subtidal communities:

Which of the following organisms is most likely to be an epiphyte?

The plankton and nekton that inhabit the water column over the continental shelf are said to live in what zone?

The Science of Marine Biology

The Sea Floor

Chemical and Physical Features of Seawater and the World Ocean

Fundamentals of Biology

The Microbial World

Multicellular Primary Producers: Seaweeds and Plants

Marine Animals Without a Backbone

Marine Fishes

Marine Reptiles, Birds, and Mammals

An Introduction to Marine Ecology

Between the Tides

Estuaries: Where Rivers Meet the Sea

Coral Reefs

Life Near the Surface

The Ocean Depths

Resources From the Sea

The Impact of Humans on the Marine Environment

The Oceans and Human Affairs

Filters