Question 1

Kelp forests are most common in tropical latitudes.

Accepted Answer

A) True 
 B)False

Question 2

An example of a vascular plant that is successful in low, muddy coasts in tropical and subtropical areas are:

Accepted Answer

A)  mangroves. 
B)  ahermatypic corals. 
C)  kelp. 
D)  macroalgae. 
A)  mangroves. 
B)  ahermatypic corals. 
C)  kelp. 
D)  macroalgae.

Question 3

Coral reef communities:

Accepted Answer

A)  are made up exclusively of various species of coral polyps. 
B)  are made up of filter and suspension feeders living off the abundant plankton. 
C)  are limited to carnivorous animals. 
D)  are successful because they efficiently recycle nutrients 
A)  are made up exclusively of various species of coral polyps. 
B)  are made up of filter and suspension feeders living off the abundant plankton. 
C)  are limited to carnivorous animals. 
D)  are successful because they efficiently recycle nutrients

Question 4

Algae are classified by:

Accepted Answer

A)  their method of photosynthesis. 
B)  their location in the intertidal. 
C)  their photosynthetic pigments. 
D)  their size and shape. 
A)  their method of photosynthesis. 
B)  their location in the intertidal. 
C)  their photosynthetic pigments. 
D)  their size and shape.

Question 5

One might expect to encounter all of the following organisms in an estuary EXCEPT:

Accepted Answer

A)  sea grasses 
B)  hermatypic corals 
C)  phytoplankton 
D)  juvenile fish 
A)  sea grasses 
B)  hermatypic corals 
C)  phytoplankton 
D)  juvenile fish

Question 6

Which of these benthic habitats is NOT characterized by both high productivity and high biodiversity?

Accepted Answer

A)  The hydrothermal vents in the deep sea. 
B)  Salt marshes associated with estuaries. 
C)  Rocky intertidal communities of the US west coast. 
D)  Sandy beaches of tropical shores. 
A)  The hydrothermal vents in the deep sea. 
B)  Salt marshes associated with estuaries. 
C)  Rocky intertidal communities of the US west coast. 
D)  Sandy beaches of tropical shores.

Question 7

Hermatypic corals are corals that build reefs in tropical areas.

Accepted Answer

A) True 
 B)False

Question 8

A physical challenge that high-intertidal organisms must adapt to is:

Accepted Answer

A)  chemosynthesis. 
B)  zonation. 
C)  osmotic pressure. 
D)  desiccation. 
A)  chemosynthesis. 
B)  zonation. 
C)  osmotic pressure. 
D)  desiccation.

Question 9

The symbiotic dinoflagellate that lives within coral tissue is called:

Accepted Answer

A)  kelp. 
B)  Riftia. 
C)  zooxanthellae. 
D)  polyp. 
A)  kelp. 
B)  Riftia. 
C)  zooxanthellae. 
D)  polyp.

Question 10

Which of these statements is FALSE concerning estuaries?

Accepted Answer

A)  Larvae are often abundant there. 
B)  Estuaries are in danger of development and pollution. 
C)  Very few autotrophs live in estuaries, but many animals can be found there. 
D)  Estuaries are places where saltwater and fresh water meet. 
A)  Larvae are often abundant there. 
B)  Estuaries are in danger of development and pollution. 
C)  Very few autotrophs live in estuaries, but many animals can be found there. 
D)  Estuaries are places where saltwater and fresh water meet.

Question 11

Life in productive tropical reefs is characterized by:

Accepted Answer

A)  extreme competition for food, territory, and reproductive opportunities. 
B)  very few species, but large numbers of each species. 
C)  large adults in each species that reproduce late in life. 
D)  organisms with extremely long lifespans. 
A)  extreme competition for food, territory, and reproductive opportunities. 
B)  very few species, but large numbers of each species. 
C)  large adults in each species that reproduce late in life. 
D)  organisms with extremely long lifespans.

Question 12

Ahermatypic corals are:

Accepted Answer

A)  found in shallow waters in the tropics. 
B)  have symbiotic algae. 
C)  are found in the deep-sea. 
D)  are actually plants. 
A)  found in shallow waters in the tropics. 
B)  have symbiotic algae. 
C)  are found in the deep-sea. 
D)  are actually plants.

Question 13

Marine algae are nonvascular plants.

Accepted Answer

A) True 
 B)False

Question 14

Hydrothermal vents that support biological communities exist because of primary productivity in the form of chemosynthesis.

Accepted Answer

A) True 
 B)False

Question 15

According to Darwin, the last stage in the cycle of reef formation is:

Accepted Answer

A)  the fringing reef. 
B)  the atoll. 
C)  the algal rim. 
D)  the barrier reef. 
A)  the fringing reef. 
B)  the atoll. 
C)  the algal rim. 
D)  the barrier reef.

Question 16

The biomass of benthic algae in the ocean is greater than the biomass of phytoplankton.

Accepted Answer

A) True 
 B)False

Question 17

Interstitial animals are very small and live between sand grains.

Accepted Answer

A) True 
 B)False

Question 18

Despite residing in the deep, dark sea, hydrothermal vents are able to support a diverse community of organisms including pogonophorans, clams, crabs, worms and many more species. Since no light reaches hydrothermal vents, explain what provides the basis of primary production and how it supports the community?

Accepted Answer

Communities around hydrothermal vents an

Question 19

In Darwin's description of reef structures, a fringing reef:

Accepted Answer

A)  usually forms on the lee side of a tropical island. 
B)  has a deep lagoon that separates the reef from the island. 
C)  is ring-shaped and is not associated with an island. 
D)  is formed as a volcanic island sinks. 
A)  usually forms on the lee side of a tropical island. 
B)  has a deep lagoon that separates the reef from the island. 
C)  is ring-shaped and is not associated with an island. 
D)  is formed as a volcanic island sinks.

Question 20

Perhaps the most difficult oceanic environments for small organisms to inhabit are:

Accepted Answer

A)  low-energy abyssal plains. 
B)  high-energy sand and cobble beaches. 
C)  low-productivity salt marshes. 
D)  high-productivity rocky intertidal communities. 
A)  low-energy abyssal plains. 
B)  high-energy sand and cobble beaches. 
C)  low-productivity salt marshes. 
D)  high-productivity rocky intertidal communities.

Kelp forests are most common in tropical latitudes.

An example of a vascular plant that is successful in low, muddy coasts in tropical and subtropical areas are:

Coral reef communities:

Algae are classified by:

One might expect to encounter all of the following organisms in an estuary EXCEPT:

Which of these benthic habitats is NOT characterized by both high productivity and high biodiversity?

Hermatypic corals are corals that build reefs in tropical areas.

A physical challenge that high-intertidal organisms must adapt to is:

The symbiotic dinoflagellate that lives within coral tissue is called:

Which of these statements is FALSE concerning estuaries?

Life in productive tropical reefs is characterized by:

Ahermatypic corals are:

Marine algae are nonvascular plants.

Hydrothermal vents that support biological communities exist because of primary productivity in the form of chemosynthesis.

According to Darwin, the last stage in the cycle of reef formation is:

The biomass of benthic algae in the ocean is greater than the biomass of phytoplankton.

Interstitial animals are very small and live between sand grains.

In Darwin's description of reef structures, a fringing reef:

Perhaps the most difficult oceanic environments for small organisms to inhabit are:

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Tides

Coasts

Life in the Ocean

Pelagic Communities

Uses and Abuses of the Ocean

Filters

Exam 14: Benthic Communities

Kelp forests are most common in tropical latitudes.

An example of a vascular plant that is successful in low, muddy coasts in tropical and subtropical areas are:

Coral reef communities:

Algae are classified by:

One might expect to encounter all of the following organisms in an estuary EXCEPT:

Which of these benthic habitats is NOT characterized by both high productivity and high biodiversity?

Hermatypic corals are corals that build reefs in tropical areas.

A physical challenge that high-intertidal organisms must adapt to is:

The symbiotic dinoflagellate that lives within coral tissue is called:

Which of these statements is FALSE concerning estuaries?

Life in productive tropical reefs is characterized by:

Ahermatypic corals are:

Marine algae are nonvascular plants.

Hydrothermal vents that support biological communities exist because of primary productivity in the form of chemosynthesis.

According to Darwin, the last stage in the cycle of reef formation is:

The biomass of benthic algae in the ocean is greater than the biomass of phytoplankton.

Interstitial animals are very small and live between sand grains.

In Darwin's description of reef structures, a fringing reef:

Perhaps the most difficult oceanic environments for small organisms to inhabit are:

The Origin of the Ocean

A History of Marine Science

Earth Structure and Plate Tectonics

Ocean Basins

Ocean Sediments

Water

Atmospheric Circulation

Ocean Circulation

Waves

Tides

Coasts

Life in the Ocean

Pelagic Communities

Uses and Abuses of the Ocean

Filters