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Coral Reef

Total questions: 30

Worksheet time: 24mins

Name
Class
Date
1.
Where is the Great Barrier Reef located?
a)
Puerto Rico
b)
Florida
c)
Indonisia
d)
Australia
2.
A ringed shaped reef
a)
fringing reef
b)
barrier reef
c)
atoll
d)
archipelago 
3.
What is the hard structure that provides the foundation for the reef?
a)
limestone
b)
sandstone
c)
concrete
d)
granite
4.
Coral reef is an animal
a)
false
b)
true
5.
A coral reef provides ________ for small fish.
a)
food
b)
shelter
c)
friends
6.
Anemones use their _____ to paralyze their prey.
a)
noses
b)
tentacles
c)
feet
d)
teeth
7.
Coral reefs are found all over the oceans.
a)
true
b)
false
8.

What are coral reefs often compared to?

a)

forests

b)

gardens

c)

rainforests

d)

deserts

9.

Coral reefs are endangered by

a)

climate change

b)

overfishing

c)

pollution

d)

all of the above

10.

Coral Reefs are found in

a)

tropical waters

b)

waters around the South pole only

c)

sub-tropical waters

d)

A and C

11.

Coral reefs are home to how many species?

a)

thousands

b)

billions

c)

hundreds

d)

millions

12.

What causes coral bleaching?

a)

oil spills

b)

warmer water temperatures

c)

overfishing

d)

red tide

13.

What is one way scientists trying to save the coral reefs?

a)

by growing coral and planting it in the ocean

b)

by restricting access to reefs

c)

by adding new species of fish to the reefs

d)

by adding fertilizer to the coral reefs

14.

What is the largest coral reef on the planet?

a)

Rainbow Reef, Fiji

b)

Great Chago Archipelago, Indian Ocean

c)

Amazon Reef, Brazil

d)

Great Barrier Reef, Australia

15.
What builds up over time to form a reef?
a)
Sand
b)
Coral skeletons
c)
Fish bones
d)
Rocks
16.
Which of the following is NOT a type of coral reef?
a)
Fringing reefs
b)
Barrier reefs
Barrier reefs
c)
Atolls
d)
Crustacean 
17.
What type of water does coral prefer?
a)
Warm
b)
Cold
18.
Why does coral require clear water to grow?
a)
For chemosynthesis
b)
For predation
c)
For autotroph
d)
For photosynthesis
19.
Which type of coral reef forms along the shoreline?
a)
Fringing
b)
Barrier
c)
Atoll
d)
Soft Coral
20.
What type of coral reef forms a lagoon?
a)
Fringing
b)
Barrier
c)
Atoll
d)
Soft Coral
21.
Hard coral relies upon symboitic algae (who uses photosynthesis) as a food source. The algae provide food for coral and the coral provides a shelter for algae. Which type of symbiotic relationship is this?
a)
Parasitism 
b)
Commensalism 
c)
Mutualism
d)
Predation
22.
Who causes the most damage to coral reefs?
a)
Whales
b)
Fish
c)
Boats
d)
Humans
23.
How can we protect the coral reef even if we don't live near it?
a)
Don't do anything
b)
Go diving and take fish out
c)
Don't throw anything in the ocean
d)
Clean the reefs with soap
24.
What is a tiny individual coral animal?
a)
Polyps
b)
Crevice
c)
Atolls
d)
Erosion
25.

Coral polyps have what type of symbiotic relationship with zooxanthellae?

a)

Mutualistic

b)

Predator/Prey

c)

Commensual

d)

Parasitic

26.

Coral polyps secrete what mineral?

a)

carbon calciate

b)

calcium carbonate

c)

calcium hydroxide

d)

carbon hydroxide

27.

Choose all of the necessary envrionmental requirements for coral.

a)

clear water

b)

warm waters

c)

soft bottom

d)

low nutrient water

e)

high water circulation

28.

What provides color to the coral?

a)

pigments in their skin

b)

the food that they eat

c)

the zooxanthellae

d)

minerals in the water

29.

What is coral bleaching?

a)

when the coral gets sick and loses its color

b)

when the coral dies

c)

the zooxanthellae turns white

d)

when the coral turns white during spawning

30.

How do corals reproduce?

a)

sexually

b)

asexually

c)

they are viviporous

d)

both sexually and asexually

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