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Coral Reefs
Test Description: Quiz on Coral Reefs
Instructions: Answer all questions to get your test result.
1) Where are coral reefs located?
A
Mid-latitiudes
B
Subtropics
C
Tropics
D
High Latitudes
2) What is the name of the animal part of a coral?
A
dinoflagellate
B
medusa
C
polyp
D
zooxanthellae
3) What do hard corals extract from seawater for their skeleton?
A
sulfate
B
magnesium
C
calcium
D
collagen
4) What is the name of the symbiotic organisms that live inside a coral?
A
cnidocytes
B
gorgonia
C
nematocysts
D
zooxanthellae
5) What is the proper sequence in reef formation?
A
barrier reef, fringing, patch,atoll
B
atoll, barrier, fringing, patch
C
fringing reef, barrier,patch, atoll
D
patch reef, atoll, barrier, fringing
6) How do corals reproduce?
A
asexually only
B
they don't reproduce
C
sexually only
D
asexually and sexually
7) How old are most coral reefs?
A
10,000-15,000 years
B
1,000-5,000 years
C
5,000-10,000 years
D
Over 50 million years
8) How fast do most corals grow per year?
A
6-8 inches
B
8-10 inches
C
1 inch
D
2-4 inches
9) What give corals their color?
A
gastodermis
B
nematocysts
C
cnidocytes
D
zooxanthellae
10) How do corals get food?
A
Filter-feeding and zooxanthellae
B
Order it from Burger King
C
Zooxanthellae only
D
Filter-feeding only
*select an answer for all questions
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