Question 1

One of the following will be relatively uncommon component of rocky subtidal communities due to the nature of the substrate:

Accepted Answer

A) Producers. 
B) Grazers. 
C) Predators. 
D) Infauna. 
E) Epifauna. 
A) Producers. 
B) Grazers. 
C) Predators. 
D) Infauna. 
E) Epifauna. D

Question 2

The life cycle of the giant kelp involves:

Accepted Answer

A) One growth form. 
B) Two growth forms. 
C) Two growth forms,both very large. 
D) Two or three growth forms,depending on temperature. 
E) One growth form,which can be large or small depending on temperature. 
A) One growth form. 
B) Two growth forms. 
C) Two growth forms,both very large. 
D) Two or three growth forms,depending on temperature. 
E) One growth form,which can be large or small depending on temperature. B

Question 3

Which of the following factors is most likely to have an effect on the global distribution of organisms on the continental shelf?

Accepted Answer

A) Stratification of water 
B) Oxygen 
C) Nutrients 
D) Temperature 
E) Turbulence 
A) Stratification of water 
B) Oxygen 
C) Nutrients 
D) Temperature 
E) Turbulence D

Question 4

Sea weed species with increased photosynthetic pigments for life in deeper waters are found in:

Accepted Answer

A) Red algae. 
B) Brown algae. 
C) Green algae. 
D) All answers are correct. 
E) Red algae and Brown algae only. 
A) Red algae. 
B) Brown algae. 
C) Green algae. 
D) All answers are correct. 
E) Red algae and Brown algae only.

Question 5

The part of the continental shelf that is never exposed at low tide is called the:

Accepted Answer

A) Littoral zone. 
B) Subtidal zone. 
C) Intertidal zone. 
D) Pelagic zone. 
E) Abyssal zone. 
A) Littoral zone. 
B) Subtidal zone. 
C) Intertidal zone. 
D) Pelagic zone. 
E) Abyssal zone.

Question 6

Most of the biomass produced by seagrasses find their way into the food chain by way of:

Accepted Answer

A) Small herbivores that eat the plants. 
B) Detritus. 
C) Epiphytes that live on the surface of leaves and also feed on the plants. 
D) Plankton that thrive on nutrients released by the plants. 
E) Large herbivores such as manatees and sea turtles that feed on the plants. 
A) Small herbivores that eat the plants. 
B) Detritus. 
C) Epiphytes that live on the surface of leaves and also feed on the plants. 
D) Plankton that thrive on nutrients released by the plants. 
E) Large herbivores such as manatees and sea turtles that feed on the plants.

Question 7

Due to the current circulation patterns the distribution of kelps is expected to be the widest on coasts along the:

Accepted Answer

A) Eastern side of oceans. 
B) Western side of oceans. 
C) Southern Hemisphere. 
D) Northern Hemisphere. 
E) Equator. 
A) Eastern side of oceans. 
B) Western side of oceans. 
C) Southern Hemisphere. 
D) Northern Hemisphere. 
E) Equator.

Question 8

Which of the following is a positive effect of bioturbators?

Accepted Answer

A) Oxygenate sediments 
B) Bury infauna 
C) They absorb toxins from the sediments 
D) They stabilize the detritus 
E) All answers are correct 
A) Oxygenate sediments 
B) Bury infauna 
C) They absorb toxins from the sediments 
D) They stabilize the detritus 
E) All answers are correct

Question 9

Most of the sediment over the continental shelf consists of:

Accepted Answer

A) Siliceous ooze. 
B) Calcareous ooze. 
C) Lithogenous. 
D) Biogenous. 
E) A mixture of siliceous and calcareous ooze. 
A) Siliceous ooze. 
B) Calcareous ooze. 
C) Lithogenous. 
D) Biogenous. 
E) A mixture of siliceous and calcareous ooze.

Question 10

Typically,the dominant inhabitants of rocky subtidal bottoms in shallow water are:

Accepted Answer

A) Crabs. 
B) Sea urchins. 
C) Macroalgaes/Seaweeds. 
D) Seagrasses. 
E) Sessile worms. 
A) Crabs. 
B) Sea urchins. 
C) Macroalgaes/Seaweeds. 
D) Seagrasses. 
E) Sessile worms.

Question 11

Kelps are characteristic of:

Accepted Answer

A) Soft bottoms. 
B) Arctic and Antarctic coasts. 
C) Hard bottoms in the tropics. 
D) Soft bottoms but only in the tropics. 
E) Temperate regions. 
A) Soft bottoms. 
B) Arctic and Antarctic coasts. 
C) Hard bottoms in the tropics. 
D) Soft bottoms but only in the tropics. 
E) Temperate regions.

Question 12

Settlement and metamorphosis in the planktonic larvae of many subtidal animals is determined or influenced by:

Accepted Answer

A) Biological factors such as presence of adults. 
B) Physical factors such as the type of bottom. 
C) Both biological and physical factors. 
D) None of the choices are correct. 
A) Biological factors such as presence of adults. 
B) Physical factors such as the type of bottom. 
C) Both biological and physical factors. 
D) None of the choices are correct.

Question 13

Deposit feeders would be most likely to be found on which substrate?

Accepted Answer

A) Coral reefs 
B) Muddy bottoms 
C) Gravel bottoms 
D) Rocky shores 
E) None of the choices are correct 
A) Coral reefs 
B) Muddy bottoms 
C) Gravel bottoms 
D) Rocky shores 
E) None of the choices are correct

Question 14

Primary production on soft-bottomed subtidal communities is highest in:

Accepted Answer

A) Salt marshes. 
B) Mangrove forests. 
C) Seagrass beds. 
D) Oyster reefs. 
E) Coral reefs. 
A) Salt marshes. 
B) Mangrove forests. 
C) Seagrass beds. 
D) Oyster reefs. 
E) Coral reefs.

Question 15

The higher the water turbulence such as wave action,the higher the relative number of:

Accepted Answer

A) Planktonic species. 
B) Deposit feeders. 
C) Nektonic species. 
D) Filter feeders. 
E) Primary producers. 
A) Planktonic species. 
B) Deposit feeders. 
C) Nektonic species. 
D) Filter feeders. 
E) Primary producers.

Question 16

What type of animals are typically absent in soft-bottom subtidal communities:

Accepted Answer

A) Epifauna. 
B) Benthic. 
C) Infauna. 
D) Sessile. 
E) Deposit feeders. 
A) Epifauna. 
B) Benthic. 
C) Infauna. 
D) Sessile. 
E) Deposit feeders.

Question 17

The distribution of the infauna of soft-bottom subtidal communities is often closely related to:

Accepted Answer

A) Temperature. 
B) Particle size of sediment. 
C) Salinity. 
D) Distribution of seaweeds. 
E) Light. 
A) Temperature. 
B) Particle size of sediment. 
C) Salinity. 
D) Distribution of seaweeds. 
E) Light.

Question 18

As turbulence decreases:

Accepted Answer

A) The amount of oxygen in the sediment decreases. 
B) The amount of detritus in the sediment decreases. 
C) The size of sediment particles increases. 
D) The relative number of suspension feeders increases. 
E) The relative number of seaweed species increases. 
A) The amount of oxygen in the sediment decreases. 
B) The amount of detritus in the sediment decreases. 
C) The size of sediment particles increases. 
D) The relative number of suspension feeders increases. 
E) The relative number of seaweed species increases.

Question 19

The difference in the tint of the waters above the continental shelf (greenish)and the deep blue of the open ocean is due to:

Accepted Answer

A) The refraction of light near the coastline. 
B) The turbulence of shallow-water wave action. 
C) The presence of large numbers of carnivorous fishes. 
D) The shallow depth of the continental shelf out to the shelf break. 
E) The high level of photosynthetic productivity. 
A) The refraction of light near the coastline. 
B) The turbulence of shallow-water wave action. 
C) The presence of large numbers of carnivorous fishes. 
D) The shallow depth of the continental shelf out to the shelf break. 
E) The high level of photosynthetic productivity.

Question 20

Which of the following strategies is not used by seaweeds to combat grazing?

Accepted Answer

A) Chemical defenses 
B) Leathery consistency 
C) Calcium carbonate 
D) Bad taste 
E) Slow growth 
A) Chemical defenses 
B) Leathery consistency 
C) Calcium carbonate 
D) Bad taste 
E) Slow growth

One of the following will be relatively uncommon component of rocky subtidal communities due to the nature of the substrate:

The life cycle of the giant kelp involves:

Which of the following factors is most likely to have an effect on the global distribution of organisms on the continental shelf?

Sea weed species with increased photosynthetic pigments for life in deeper waters are found in:

The part of the continental shelf that is never exposed at low tide is called the:

Most of the biomass produced by seagrasses find their way into the food chain by way of:

Due to the current circulation patterns the distribution of kelps is expected to be the widest on coasts along the:

Which of the following is a positive effect of bioturbators?

Most of the sediment over the continental shelf consists of:

Typically,the dominant inhabitants of rocky subtidal bottoms in shallow water are:

Kelps are characteristic of:

Settlement and metamorphosis in the planktonic larvae of many subtidal animals is determined or influenced by:

Deposit feeders would be most likely to be found on which substrate?

Primary production on soft-bottomed subtidal communities is highest in:

The higher the water turbulence such as wave action,the higher the relative number of:

What type of animals are typically absent in soft-bottom subtidal communities:

The distribution of the infauna of soft-bottom subtidal communities is often closely related to:

As turbulence decreases:

The difference in the tint of the waters above the continental shelf (greenish)and the deep blue of the open ocean is due to:

Which of the following strategies is not used by seaweeds to combat grazing?

The Science of Marine Biology

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Chemical and Physical Features of Seawater and the World Ocean

Fundamentals of Biology

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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

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Exam 13: Life on the Continental Shelf

One of the following will be relatively uncommon component of rocky subtidal communities due to the nature of the substrate:

The life cycle of the giant kelp involves:

Which of the following factors is most likely to have an effect on the global distribution of organisms on the continental shelf?

Sea weed species with increased photosynthetic pigments for life in deeper waters are found in:

The part of the continental shelf that is never exposed at low tide is called the:

Most of the biomass produced by seagrasses find their way into the food chain by way of:

Due to the current circulation patterns the distribution of kelps is expected to be the widest on coasts along the:

Which of the following is a positive effect of bioturbators?

Most of the sediment over the continental shelf consists of:

Typically,the dominant inhabitants of rocky subtidal bottoms in shallow water are:

Kelps are characteristic of:

Settlement and metamorphosis in the planktonic larvae of many subtidal animals is determined or influenced by:

Deposit feeders would be most likely to be found on which substrate?

Primary production on soft-bottomed subtidal communities is highest in:

The higher the water turbulence such as wave action,the higher the relative number of:

What type of animals are typically absent in soft-bottom subtidal communities:

The distribution of the infauna of soft-bottom subtidal communities is often closely related to:

As turbulence decreases:

The difference in the tint of the waters above the continental shelf (greenish)and the deep blue of the open ocean is due to:

Which of the following strategies is not used by seaweeds to combat grazing?

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

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