Question 1

Hydrothermal vents support a community of organisms including pogonophorans, clams, crabs, and worms, just to name a few. But hydrothermal vents are found in the deep-sea far from the photic zone. If no light reaches hydrothermal vents, what is the basis of the primary productivity that supports the community?

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Question 2

Describe Darwin's hypothesis for atoll formation around volcanic islands.

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Question 3

What are some factors that make life difficult on the deep ocean floor?

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Question 4

The intertidal zone represents one of the most stressful environments in terms of changing environmental conditions. Explain this comment using specific examples of stresses and how organisms are able to survive in the intertidal zone.

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Question 5

Explain why salt marshes and estuaries are among the most productive of marine habitats.

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Quiz 14: Benthic Communities

Describe Darwin's hypothesis for atoll formation around volcanic islands.

What are some factors that make life difficult on the deep ocean floor?

The intertidal zone represents one of the most stressful environments in terms of changing environmental conditions. Explain this comment using specific examples of stresses and how organisms are able to survive in the intertidal zone.

Explain why salt marshes and estuaries are among the most productive of marine habitats.