Question 1

On subtidal rocky reefs

Accepted Answer

A)  Urchins are usually absent 
B)  Urchins are found more abundantly on horizontal than vertical benches 
C)  Urchins are found more abundantly on vertical than horizontal benches 
D)  Carnivores are largely absent 
A)  Urchins are usually absent 
B)  Urchins are found more abundantly on horizontal than vertical benches 
C)  Urchins are found more abundantly on vertical than horizontal benches 
D)  Carnivores are largely absent

Question 2

Mass spawning of many species on coral reefs is beneficial because

Accepted Answer

A)  It guarantees cross-fertilization among species 
B)  It increases the probability of fertilization for each species separately 
C)  It allows suspension feeders to feed on gametes from the water column 
D)  It guarantees the distant transport of gametes from the parents 
A)  It guarantees cross-fertilization among species 
B)  It increases the probability of fertilization for each species separately 
C)  It allows suspension feeders to feed on gametes from the water column 
D)  It guarantees the distant transport of gametes from the parents

Question 3

How does eel grass affect sedimentation?

Accepted Answer

A)  It slows currents and increases sedimentation 
B)  Leaves decompose and increase sedimentation of organic material 
C)  It encourages the growth of surface algae and seaweeds and increases sedimentation 
D)  All of the above 
A)  It slows currents and increases sedimentation 
B)  Leaves decompose and increase sedimentation of organic material 
C)  It encourages the growth of surface algae and seaweeds and increases sedimentation 
D)  All of the above

Question 4

If suspension feeding bivalves are abundant

Accepted Answer

A)  Sea grasses are abundant because the bivalves feed and increase transmitted light to the seabed 
B)  Sea grasses decline because they are inundated with bivalve pseudofeces 
C)  Sea grasses are not affected 
D)  Sea grasses decline because of predation on bivalves 
A)  Sea grasses are abundant because the bivalves feed and increase transmitted light to the seabed 
B)  Sea grasses decline because they are inundated with bivalve pseudofeces 
C)  Sea grasses are not affected 
D)  Sea grasses decline because of predation on bivalves

Question 5

Sea grasses such as eel grass

Accepted Answer

A)  Have their lower depth limited strictly by light 
B)  Have their lower depth limited by herbivore pressure by fish grazing 
C)  Can live at great depths, as much as 10 m 
D)  Cannot grow in soft sediment such as mud because the pore waters lack oxygen 
A)  Have their lower depth limited strictly by light 
B)  Have their lower depth limited by herbivore pressure by fish grazing 
C)  Can live at great depths, as much as 10 m 
D)  Cannot grow in soft sediment such as mud because the pore waters lack oxygen

Question 6

Many sessile species often coexist on coral reefs because

Accepted Answer

A)  Space is never limiting 
B)  Predation always reduces population sizes 
C)  Interspecific mechanisms of competition are complex and often non-hierarchical 
D)  They could never require the same space for attachment 
A)  Space is never limiting 
B)  Predation always reduces population sizes 
C)  Interspecific mechanisms of competition are complex and often non-hierarchical 
D)  They could never require the same space for attachment

Question 7

In regions with coral reefs

Accepted Answer

A)  Diseases are spread only locally within a reef 
B)  Only corals have been found to be affected by disease 
C)  Disease has been found to play an insignificant role in coral reef ecology 
D)  Diseases can be spread by currents over large areas 
A)  Diseases are spread only locally within a reef 
B)  Only corals have been found to be affected by disease 
C)  Disease has been found to play an insignificant role in coral reef ecology 
D)  Diseases can be spread by currents over large areas

Question 8

Zooxanthellae

Accepted Answer

A)  Are never found outside of their coral hosts 
B)  Are found only in hermatypic corals 
C)  Are found in a number of invertebrate animal groups 
D)  Cannot reproduce while in their hosts 
A)  Are never found outside of their coral hosts 
B)  Are found only in hermatypic corals 
C)  Are found in a number of invertebrate animal groups 
D)  Cannot reproduce while in their hosts

On subtidal rocky reefs

Mass spawning of many species on coral reefs is beneficial because

How does eel grass affect sedimentation?

If suspension feeding bivalves are abundant

Sea grasses such as eel grass

Many sessile species often coexist on coral reefs because

In regions with coral reefs

Zooxanthellae

Sounding the Deep

The Oceanic Environment

Climate Oscillations and Climate Change

Ecological and Evolutionary Principles of Marine Biology

The Chemical and Physical Environment

Life in a Fluid Medium

Reproduction, Dispersal, and Migration

Plankton

Marine Vertebrates and Other Nekton

The Open Sea: Distributions and Adaptations

Processes in the Water Column

Productivity, Food Webs, and Global Climate Change

Benthic Microorganisms, Seaweeds, and Sea Grasses

The Diversity of Benthic Marine Invertebrates

Benthic Life Habits

The Tidelands: Rocky Shores, Soft-Substratum Shores, Marshes, Mangroves, Estuaries, and Oyster Reefs

Benthos From the Continental Shelf to the Deep Sea

Polar Marine Biology

Biodiversity and Conservation of the Ocean

Fisheries and Food From the Sea

Environmental Impacts of Industrial Activities and Human Populations

Filters

Exam 17: The Shallow Coastal Subtidal: Sea Grass Beds, Rocky Reefs, Kelp Forests, and Coral Reefs

On subtidal rocky reefs

Mass spawning of many species on coral reefs is beneficial because

How does eel grass affect sedimentation?

If suspension feeding bivalves are abundant

Sea grasses such as eel grass

Many sessile species often coexist on coral reefs because

In regions with coral reefs

Zooxanthellae

Sounding the Deep

The Oceanic Environment

Climate Oscillations and Climate Change

Ecological and Evolutionary Principles of Marine Biology

The Chemical and Physical Environment

Life in a Fluid Medium

Reproduction, Dispersal, and Migration

Plankton

Marine Vertebrates and Other Nekton

The Open Sea: Distributions and Adaptations

Processes in the Water Column

Productivity, Food Webs, and Global Climate Change

Benthic Microorganisms, Seaweeds, and Sea Grasses

The Diversity of Benthic Marine Invertebrates

Benthic Life Habits

The Tidelands: Rocky Shores, Soft-Substratum Shores, Marshes, Mangroves, Estuaries, and Oyster Reefs

Benthos From the Continental Shelf to the Deep Sea

Polar Marine Biology

Biodiversity and Conservation of the Ocean

Fisheries and Food From the Sea

Environmental Impacts of Industrial Activities and Human Populations

Filters