Deep Sea Ecosystems

Deep Sea Ecosystems

10 Qs

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Deep Sea Ecosystems

Deep Sea Ecosystems

Assessment

Quiz

Biology

Practice Problem

Hard

Created by

David Janzen

Used 3+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main source of nutrients in the deep sea?

Sunlight

Marine snow

Cetacean carcasses

Debris from the ocean floor

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a whale fall?

A whale that falls from the surface waters to the deep sea

An event where a whale carcass sinks to the sea floor

A type of ecosystem found in the deep sea

A process of decomposition of a whale carcass

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the estimated nutrient value provided by a decomposing 40-ton whale carcass?

Equivalent to 2,000 years worth of marine snow

Equivalent to 50 square meters of marine snow

Equivalent to 2,000 years worth of debris from the ocean floor

Equivalent to 50 square meters of debris from the ocean floor

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first stage of ecological succession in a whale-fall ecosystem?

Mobile-scavenger stage

Enrichment-opportunist stage

Sulfophilic stage

Reef stage

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which organisms are the primary scavengers in the mobile-scavenger stage?

Hagfish and sharks

Worms and crustaceans

Mussels and clams

Polychaete worms

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the second stage of ecological succession in a whale-fall ecosystem?

Mobile-scavenger stage

Enrichment-opportunist stage

Sulfophilic stage

Reef stage

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of organisms colonize the bones during the enrichment-opportunist stage?

Worms, crustaceans, and molluscs

Hagfish and sharks

Mussels and clams

Polychaete worms

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