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WorksheetsCoral Review
Total questions: 30
Worksheet time: 16mins
Name
Class
Date
1.
Where is the Great Barrier Reef located?
a)
Puerto Rico
b)
Florida
c)
Indonisia
d)
Australia
2.
What threatens the reefs in the fall?
a)
predators
b)
pollution
c)
hurricanes
d)
elevated temperatures
3.
What is the biggest ecological benefit of coral reefs?
a)
ecotourism
b)
seafood harvesting
c)
habitat production
d)
protection of shoreline
4.
What is the biggest economic benefit of coral reefs?
a)
filtration of sea water
b)
habitat production
c)
ecotourism
d)
protection of shoreline
5.
What are the two types of corals?
a)
plant/animal
b)
polyp/medusa
c)
fringing/barrier
d)
hard/soft
6.
What is the main abiotic factor that will determine the location of a reef?
a)
available surface
b)
depth
c)
salinity
d)
temperature/light
7.
A ringed shaped reef
a)
fringing reef
b)
barrier reef
c)
atoll
d)
archipelago
8.
Coral larvae become a __________.
a)
polyp
b)
hard coral
c)
soft coral
d)
reef
9.
Two factors trigger reproduction on reefs?
a)
tides & temperature
b)
light & temperature
c)
light & depth
d)
tides & depth
10.
What is the hard structure that provides the foundation for the reef?
a)
limestone
b)
sandstone
c)
concrete
d)
granite
11.
Without these "apartment houses" there would be?
a)
fewer fish in the ocean
b)
more fish in the ocean
c)
no fish in the ocean
12.
Coral reefs are made up of thousands of tiny animals called?
a)
coralettes
b)
polyps
c)
plankton
13.
What is one thing that kills coral?
a)
pollution
b)
other ocean animals
c)
the sun
14.
What is it called when coral loses its color?
a)
bleaching
b)
white out
c)
colorization
15.
What can choke polyps?
a)
too many fish swimming
b)
not enough air
c)
too much seaweed growing
d)
not enough silt
16.
Coral reef is an animal
a)
false
b)
true
17.
What caused the bleaching of a large part of the Great Barrier Reef in 2015-16?
a)
oil spill
b)
underwater heat wave
c)
formation of iceberg
d)
mass migration of fish out of area
18.
How are dead zones created?
a)
Algal blooms remove CO2 from reefs
b)
Algal blooms remove O2 from reefs
c)
oil spills
d)
over-fished reefs
19.
What do zooxanthellae provide corals in exchange for protection and shelter?
a)
Provide sugars to corals
b)
Provide oxygen to corals
c)
Provide pretty colors to corals
d)
Provide protection to corals
20.
What does ocean acidification do to shell formation?
a)
Help in the deposition of the calcium-carbonate skeleton
b)
Provide the coral with protection from predators
c)
Provide the coral with carbon dioxide
d)
Provide the coral with protection from predators
21.
Which of the following is not a source of food and other essential nutrients for corals
a)
Nutrients released by zooxanthellae
b)
Calcium carbonate from shells
c)
Dissolved organic matter (DOM) from the water
d)
Capture of food using mesenterial filaments
22.
Which of the following is not used directly by corals for nutrition
a)
Mesenterial filaments/ tentacles
b)
Photosynthesis
c)
Mucus
d)
Tentacles
23.
Why are reef-building corals limited to shallow waters?
a)
Salinity varies less in shallow water
b)
Calcium carbonate is only available in shallow water
c)
Zooxanthellae need light for photosynthesis
d)
Nutrients concentrate in shallow water
24.
The expulsion of zooxanthellae due to unfavorable conditions is called
a)
Exudation
b)
Bleaching
c)
Decalcification
d)
Denudation
25.
Generally, an important distinction between barrier and fringing reefs is that barrier reefs
a)
Are found only in the Pacific Ocean
b)
Develop farther away from land
c)
Are found only in the Caribbean
d)
Do not have a reef flat
26.
Fringing and barrier reefs develop
a)
Along a coast
b)
In the open ocean far from land
c)
Around islands in temperate regions
d)
Near atolls
27.
What is the most common type of coral reef?
a)
Atoll
b)
Barrier
c)
Fringe
d)
HOW SHOULD I KNOW
28.
What covers coral when it is dead?
a)
Life
b)
Algae
c)
Fish
d)
Seaweed
29.
Why are coral reefs so important?
a)
They are habitats to 25% of the animals on the planet
b)
They are needed to generate income for developing areas through tourism
c)
They increase food and shelter resources for larger fish improving populations of commercially harvested species
d)
All of these are benefits of coral reef systems
30.
What are the 3 names of the types of reefs?
a)
ephyera,photosythesis,sugar
b)
I AM CLUELESS
c)
Barrier ,Atoll, and Fringe
d)
Cnidarians,ephyera,polyp
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