Coral Quiz

Coral larvae become a __________.

• polyp
• hard coral
• soft coral
• reef

Coral reef is an animal

• false
• true

Which of the following is not a source of food and other essential nutrients for corals

• Nutrients released by zooxanthellae
• Calcium carbonate from shells
• Dissolved organic matter (DOM) from the water
• Capture of food using mesenterial filaments

Coral reefs are made up of thousands of tiny animals called?

• coralettes
• polyps
• plankton

What is it called when coral loses its color?

• bleaching
• white out
• colorization

Tags

NGSS.MS-ESS3-4

What do zooxanthellae provide corals in exchange for protection and shelter?

• Provide sugars (food) to corals

• Provide oxygen to corals

• Provide pretty colors to corals

• Provide protection to corals

What does ocean acidification do to shell formation?

• Leads to the disintegration of the calcium-carbonate skeleton

• Provide the coral with protection from predators

• Provide the coral with carbon dioxide

• Provide the coral with protection from predators

Why are reef-building corals limited to shallow waters? 

• Salinity varies less in shallow water
• Calcium carbonate is only available in shallow water
• Zooxanthellae need light for photosynthesis
• Nutrients concentrate in shallow water

Coral polyps secrete _____________ that creates the structure of the coral reef.

• sediments

• staghorn

• calcium carbonate

• camouflage

Clear, well-lit water is needed

• to prevent sediments from accumulating

• to keep parrotfish away

• for photosynthesis to occur

• for coral bleaching