WorksheetsCoral Reefs Review
Total questions: 22
Worksheet time: 11mins
Corals are
plants
animals
protists
bacteria
What are coral reefs often compared to?
temperate forests
organic vegetable gardens
tropical rainforests
arid deserts
What percentage of the ocean's sea life lives in coral reefs?
10 -15%
20%
45%
25%
What causes coral bleaching?
oil spills
warmer water temperatures
overfishing
red tide
What is coral bleaching?
When the sun heats up the water and the coral cannot withstand the high temperatures
When people throw bleach into the ocean
When a type of fish eats away at the coral, making it looked bleached.
When the coral naturally dies,
Between which lines of latitude are coral reefs located?
10°N and 10°S of the equator
20°N and 20°S of the equator
30°N and 30°S of the equator
40°N and 40°S of the equator
Where is the largest single reef system in the world?
Southeast Asia
Red sea
Great Barrier Reef
Caribbean belt
What percentage of the ocean's sea life lives in coral reefs?
10 -15%
20%
45%
25%
Coral reefs are endangered by
climate change
overfishing
pollution
all of the above
What lives inside of hard corals?
black sea urchins
red algae
dinoflagellates (zooxanthellae)
zooplankton
Does the Coral Reef have high biodiversity?
True
False
Where are coral reefs found in the ocean?
deep waters
shallow waters (under 150 feet)
Coral polyps have tiny, tentacle-like arms that they use for eating.
True
False
Philippines is part of the Coral Triangle.
True
False
A higher diversity of corals are found in areas of lower latitudes
True
False
All of the following countries are located on the coral triangle except:
Philippines
Indonesia
Vietnam
Malaysia
A relationship in which two species live closely together is called ________________________________.
resource
mutualism
succession
symbiosis
