Deep Sea Coral Ecosystems Quiz

What recent discovery has challenged our understanding of deep sea ecosystems?

• The discovery of new fish species

• The presence of diverse coral reefs in deep sea canyons

• The existence of underwater volcanoes

• The identification of new ocean currents

How do deep-sea corals obtain nutrients in the absence of sunlight?

• Through symbiotic relationships with fish

• Through photosynthesis

• By consuming marine snow and microorganisms

• By absorbing nutrients from the water

What is the primary component of the skeletons formed by deep-sea corals?

• Silica

• Calcium carbonate

• Magnesium

• Iron

Which coral species is known for forming large reef structures in the deep sea?

• Acropora

• Porites

• Lophelia pertusa

• Montipora

What is the estimated age of some of the oldest coral colonies found in deep-sea gardens?

• 1,000 years

• 4,200 years

• 500 years

• 2,700 years

What type of marine life is commonly found living on or near the sea floor in deep-sea coral gardens?

• Pelagic fish

• Plankton

• Demersal animals

• Sea turtles

What is a significant threat to deep-sea coral reefs caused by human activity?

• Bottom-trawl fishing

• Oil drilling

• Plastic pollution

• Climate change

Why is the destruction of deep-sea corals particularly devastating?

• They grow very slowly and take a long time to regenerate

• They are the only source of food for marine life

• They are located in easily accessible areas

• They are resistant to environmental changes

What role do deep-sea coral gardens play in the ocean ecosystem?

• They provide oxygen to the ocean

• They prevent ocean acidification

• They support ocean biodiversity by providing habitats

• They regulate ocean temperatures

What is the main reason deep-sea coral reefs must be protected?

• They are a source of valuable minerals

• They are used in medical research

• They are a unique and vital habitat for marine life

• They are a tourist attraction