Question 1

The number of trophic levels between primary producers and large consumers in coastal waters is usually:

Accepted Answer

A)  one. 
B)  two. 
C)  three. 
D)  four. 
E)  more than four. 
A)  one. 
B)  two. 
C)  three. 
D)  four. 
E)  more than four. C

Question 2

About 50% of the world's commercial fish supply comes from areas of:

Accepted Answer

A)  deep submarine canyons. 
B)  atolls. 
C)  benthic outer-edge of the continental shelf. 
D)  upwelling. 
E)  mid-ocean ridges. 
A)  deep submarine canyons. 
B)  atolls. 
C)  benthic outer-edge of the continental shelf. 
D)  upwelling. 
E)  mid-ocean ridges. D

Question 3

In areas of the continental shelf where bottom currents are weak, the environment is considered to be

Accepted Answer

A)  harsh. 
B)  always changing. 
C)  generally stable. 
D)  cyclically fluctuating. 
E)  low in species diversity. 
A)  harsh. 
B)  always changing. 
C)  generally stable. 
D)  cyclically fluctuating. 
E)  low in species diversity. C

Question 4

Match the words with the most closely associated organism.
-Gribbles

Accepted Answer

A) feed on other molluscs 
B) damage kelp by burrowing into holdfast 
C) builds fecal mounds 
A) feed on other molluscs 
B) damage kelp by burrowing into holdfast 
C) builds fecal mounds

Question 5

The average width of the continental shelves is

Accepted Answer

A)  1 mile. 
B)  10 miles. 
C)  40 miles. 
D)  480 miles. 
E)  4800 miles. 
A)  1 mile. 
B)  10 miles. 
C)  40 miles. 
D)  480 miles. 
E)  4800 miles.

Question 6

One commercially important species that is a resident of kelp forests is the

Accepted Answer

A)  abalone. 
B)  mussel. 
C)  cowrie. 
D)  lobster. 
E)  sea anemone. 
A)  abalone. 
B)  mussel. 
C)  cowrie. 
D)  lobster. 
E)  sea anemone.

Question 7

Communities on hard substrate are often found distributed

Accepted Answer

A)  randomly. 
B)  equally spaced out. 
C)  equally spaced along a vertical gradient. 
D)  in patches. 
A)  randomly. 
B)  equally spaced out. 
C)  equally spaced along a vertical gradient. 
D)  in patches.

Question 8

Laminaria is the genus of kelp that dominates in:

Accepted Answer

A)  the Pacific coast. 
B)  the South Atlantic. 
C)  the Tropical Pacific. 
D)  the North Atlantic. 
E)  the Indian Ocean. 
A)  the Pacific coast. 
B)  the South Atlantic. 
C)  the Tropical Pacific. 
D)  the North Atlantic. 
E)  the Indian Ocean.

Question 9

The benthic areas of continental shelf regions are dependent upon ____ for food.

Accepted Answer

A)  phytoplankton 
B)  zooplankton 
C)  sinking detritus 
D)  attached algae 
E)  epifauna 
A)  phytoplankton 
B)  zooplankton 
C)  sinking detritus 
D)  attached algae 
E)  epifauna

Question 10

Match the trophic role with a closely associated kelp community species.
-Primary producer

Accepted Answer

A) rockfish 
B) kelp 
C) gribble 
A) rockfish 
B) kelp 
C) gribble

Question 11

Match the consumer with its typical mode of feeding.
-Deposit feeder

Accepted Answer

A) eats detritus and bacteria 
B) scavenger and predator 
C) eats detritus and plankton 
D) herbivore 
A) eats detritus and bacteria 
B) scavenger and predator 
C) eats detritus and plankton 
D) herbivore

Question 12

Macrocystis is the genus of kelp that dominates in:

Accepted Answer

A)  the Indian Ocean. 
B)  the North Atlantic. 
C)  the Tropical Pacific. 
D)  the Mediterranean. 
E)  the Pacific Ocean. 
A)  the Indian Ocean. 
B)  the North Atlantic. 
C)  the Tropical Pacific. 
D)  the Mediterranean. 
E)  the Pacific Ocean.

Question 13

Coccolithophores are abundant in:

Accepted Answer

A)  cold marine waters. 
B)  tropical waters. 
C)  subtropical areas. 
D)  open ocean. 
E)  river mouths and estuaries. 
A)  cold marine waters. 
B)  tropical waters. 
C)  subtropical areas. 
D)  open ocean. 
E)  river mouths and estuaries.

Question 14

Match the words with the most closely associated term.
-Holdfast

Accepted Answer

A) slender stalk 
B) attached to rocks 
C) leaf-like blades 
A) slender stalk 
B) attached to rocks 
C) leaf-like blades

Question 15

A gribble:

Accepted Answer

A)  is the substrate required for kelp to grow on. 
B)  is a snail that crawls along kelp stipes. 
C)  is a group of lobsters. 
D)  is a crustacean that burrows into kelp holdfasts. 
E)  is an echinoderm that consumes kelp. 
A)  is the substrate required for kelp to grow on. 
B)  is a snail that crawls along kelp stipes. 
C)  is a group of lobsters. 
D)  is a crustacean that burrows into kelp holdfasts. 
E)  is an echinoderm that consumes kelp.

Question 16

Match the substrate type with the most closely associated organisms.
-Suspension

Accepted Answer

A) sandy bottom 
B) muddy bottom 
C) hard bottom 
A) sandy bottom 
B) muddy bottom 
C) hard bottom

Question 17

Macrocystis kelp communities have numerous ____ organisms while Laminaria kelp communities have ____ organisms.

Accepted Answer

A)  swimming, crawling 
B)  crawling, swimming 
C)  benthic, pelagic 
D)  pelagic, benthic 
E)  benthic, crawling 
A)  swimming, crawling 
B)  crawling, swimming 
C)  benthic, pelagic 
D)  pelagic, benthic 
E)  benthic, crawling

Question 18

Match the trophic role with a closely associated kelp community species.
-Secondary consumer

Accepted Answer

A) rockfish 
B) kelp 
C) gribble 
A) rockfish 
B) kelp 
C) gribble

Question 19

Compared to oceanic waters, coastal waters are much more productive areas. Describe at least 3 factors that contribute to the high productivity of these waters.

Accepted Answer

Coastal waters have the advantage of lyi

Question 20

Patchiness of the soft-bottom benthos is a result of:

Accepted Answer

A)  uneven distribution of food. 
B)  uneven distribution of sediments on the bottom. 
C)  low concentrations of nutrients on the bottom. 
D)  uneven distribution of predators. 
A)  uneven distribution of food. 
B)  uneven distribution of sediments on the bottom. 
C)  low concentrations of nutrients on the bottom. 
D)  uneven distribution of predators.

The number of trophic levels between primary producers and large consumers in coastal waters is usually:

About 50% of the world's commercial fish supply comes from areas of:

In areas of the continental shelf where bottom currents are weak, the environment is considered to be

Match the words with the most closely associated organism. -Gribbles

The average width of the continental shelves is

One commercially important species that is a resident of kelp forests is the

Communities on hard substrate are often found distributed

Laminaria is the genus of kelp that dominates in:

The benthic areas of continental shelf regions are dependent upon ____ for food.

Match the trophic role with a closely associated kelp community species. -Primary producer

Match the consumer with its typical mode of feeding. -Deposit feeder

Macrocystis is the genus of kelp that dominates in:

Coccolithophores are abundant in:

Match the words with the most closely associated term. -Holdfast

A gribble:

Match the substrate type with the most closely associated organisms. -Suspension

Macrocystis kelp communities have numerous organisms while Laminaria kelp communities have organisms.

Match the trophic role with a closely associated kelp community species. -Secondary consumer

Compared to oceanic waters, coastal waters are much more productive areas. Describe at least 3 factors that contribute to the high productivity of these waters.

Patchiness of the soft-bottom benthos is a result of:

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

The Open Sea

Life in the Oceans Depths

Harvesting the Oceans Resources

Oceans in Jeopardy

Filters

Exam 16: Continental Shelves and Neritic Zone

The number of trophic levels between primary producers and large consumers in coastal waters is usually:

About 50% of the world's commercial fish supply comes from areas of:

In areas of the continental shelf where bottom currents are weak, the environment is considered to be

Match the words with the most closely associated organism. -Gribbles

The average width of the continental shelves is

One commercially important species that is a resident of kelp forests is the

Communities on hard substrate are often found distributed

Laminaria is the genus of kelp that dominates in:

The benthic areas of continental shelf regions are dependent upon ____ for food.

Match the trophic role with a closely associated kelp community species. -Primary producer

Match the consumer with its typical mode of feeding. -Deposit feeder

Macrocystis is the genus of kelp that dominates in:

Coccolithophores are abundant in:

Match the words with the most closely associated term. -Holdfast

A gribble:

Match the substrate type with the most closely associated organisms. -Suspension

Macrocystis kelp communities have numerous ____ organisms while Laminaria kelp communities have ____ organisms.

Match the trophic role with a closely associated kelp community species. -Secondary consumer

Compared to oceanic waters, coastal waters are much more productive areas. Describe at least 3 factors that contribute to the high productivity of these waters.

Patchiness of the soft-bottom benthos is a result of:

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

The Open Sea

Life in the Oceans Depths

Harvesting the Oceans Resources

Oceans in Jeopardy

Filters

Macrocystis kelp communities have numerous organisms while Laminaria kelp communities have organisms.