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Coral Ecosystem and Environmental Impact Quiz

#1

Which type of coral is commonly found in shallow, warm waters and forms massive structures?

Stony coral
Explanation

Forms the backbone of coral reefs.

#2

What is the significance of the Great Barrier Reef?

Largest living structure on Earth
Explanation

Biodiversity hotspot.

#3

What is the primary function of the mucus produced by corals?

Defense against predators
Explanation

Forms protective barrier.

#4

What is the primary factor responsible for coral calcification?

Calcium carbonate deposition
Explanation

Builds coral skeletons.

#5

What is the primary function of the nematocysts in coral polyps?

Predator defense
Explanation

Stinging mechanism.

#6

What is the primary role of zooxanthellae in coral reefs?

Producing oxygen through photosynthesis
Explanation

Supplies energy and oxygen.

#7

Which environmental factor is a major threat to coral reefs?

High water temperature
Explanation

Causes coral bleaching.

#8

Which oceanic zone is characterized by the presence of coral reefs?

Benthic zone
Explanation

Rich in marine life.

#9

How does overfishing impact coral ecosystems?

Disrupts ecological balance
Explanation

Reduces biodiversity.

#10

Which of the following is a symbiotic relationship between coral and a fish species?

Mutualism
Explanation

Both benefit.

#11

What is coral bleaching?

Loss of color due to stress, often from high temperatures
Explanation

Indicator of coral stress.

#12

Which international agreement focuses on the conservation and sustainable use of coral reefs?

Coral Reef Conservation Act
Explanation

Legal framework for protection.

#13

What is the primary source of energy for coral reefs?

Sunlight
Explanation

Drives photosynthesis.

#14

Which type of pollution poses a threat to coral reefs by promoting algal growth?

Nutrient pollution
Explanation

Causes eutrophication.

#15

Which factor contributes to the phenomenon known as 'coral disease'?

Pathogenic microorganisms
Explanation

Causes infections.

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