Unit 5 - Coral Reef Ecosystems Review

What is a coral skeleton made out of?

• calcium carbonate

• carbon dioxide

• bicarbonate

• calcium phosphate

Coral reefs only survive in waters that are clear and have low nutrient levels, which are healthy marine ecosystems. Coral reefs are considered ___.

• ecosystem indicator species

• keystone species

• apex predators

• primary producers

Tags

NGSS.MS-LS2-5

Coral reefs absorb carbon dioxide from the atmosphere and provide habitat for many marine organisms. Coral reefs are known as ____.

• "Rainforests of the Sea"

• marine wastelands

• a desert oasis

• deep water upwellings

Which of the following is NOT a reason we need coral reefs?

• Help to protect coastline from erosion

• Bring in economic activity through tourism and food

• Potential medical cures for cancer or other diseases

• Provide carbon dioxide to the marine ecosystem

Tags

NGSS.MS-LS2-5

A ___ reef is directly attached to a shore or borders it with a shallow channel or lagoon.

• Fringing

• Barrier

• Atoll

• Submerged

A ___ reef is separated from the mainland or island by a deep lagoon.

• Fringing

• Barrier

• Atoll

• Submerged

An atoll reef surrounds a lagoon but has no ___.

• central island

• coral polyps

• sunlight

• photosynthesis

According to the Darwin-Dana-Daly theory of atoll formation, atolls form because.....

• corals grow upward as the volcanic island sinks.

• corals like to grow in a circular shape only.

• volcanic islands do not grow coral reefs.

• Darwin said so.

Which of the following contributes to ocean acidification?

• increased oxygen in the atmosphere

• increased carbon dioxide in the atmosphere

• increased photosynthesis in the ocean

• increased coral reefs in the ocean

Tags

NGSS.MS-ESS3-4

The symbiotic algae that grows in coral polyp tissues is called ___.

• zooxanthellae

• photosynthesis

• planula

• white band disease

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3