Coral Bleaching

During a marine biology class, Hannah noticed that some coral in the aquarium had lost its color. What is this phenomenon called?

• bleaching

• white out

• colorization

During a beach cleanup, Mia, Emma, and David learned about factors that kill coral reefs. Besides pollution, what else did they discover as a threat to coral?

• too much sun

• too much salt water

• humans with boats and divers

During a class discussion on climate change, Hannah mentioned that a large part of the Great Barrier Reef experienced bleaching in 2015-16. What was the cause of this bleaching? 

• oil spill

• underwater heat wave

• formation of iceberg

• mass migration of fish out of area

During a school project, Daniel, Anika, and Isla are studying the symbiotic relationship between corals and zooxanthellae. How do zooxanthellae help corals? 

• Provide sugars to corals

• Provide oxygen to corals

• Provide pretty colors to corals

• Provide protection to corals

Anika, Charlotte, and Grace are studying the effects of ocean acidification on shell formation in marine organisms. What do they observe about shell formation? 

• less CO2 means less carbon to form shells

• Shells that form are weak

• Shells don't form properly so animals die and leave hole in food chain

• All of these things happen :(

Mason, Arjun, and Abigail are studying the factors that can cause stress to coral reefs. They found 3 major factors. Which of the following are those factors?

• pollution

• fish attacks

• hot ocean temperatures

• storms

During a school trip to the Great Barrier Reef, William, Lily, and Avery learned that when coral reefs are under stress, they reject the animals that live on them. This phenomenon is called

• expulsion

• eviction

• coral bleaching

Grace, Kai, and Benjamin went on a field trip to a forest. They noticed that the forest is high in biodiversity. This means the forest is 

• populated by a lot of the same type of trees.

• populated by a few of the same type of animals.

• populated by a lot of variety of different plants and animals.

• populated by only one of each type of organism. 

In a science project, Anika, Aiden, and Henry observed a forest ecosystem. They noticed that when there is higher biodiversity in the forest,

• more organisms are likely to die because they can't adapt to environmental changes.

• there is less diversity in the forest.

• there is more diversity and higher sustainability of life in the forest.

• there is more diversity and lower sustainability of life in the forest.

During a field trip to the Great Barrier Reef, Zoe, Scarlett, and Anika observed that some corals had lost their color. What is this phenomenon called?

• bleaching

• white out

• colorization