Page 29 - Coral Reefs

THE CORAL QUIZ

1. Which of the following species is most 7. The animal part of the coral is _______
commonly found in coral reef habitat? and the plant part is __________.
a) Crocodiles a) Medusa, zooxanthellae
b) Seal b) Polyp, zooxanthellae
c) Oak tree d) Dinoflagellate, polyp
d) Sea cucumber d) zooxanthellae, polyp

2. How are coral reefs important for the 8. What is a major threat to coral reefs?
environment? a) Man-eating sharks
a) They buffet the coastal areas from b) Climate change
storms and strong waves
b) Algae in coral reefs help remove c) Pirates
large amount of CO from water d) Zombies
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c) Provide a habitable ecosystem 9. Because of their amazing diversity of
inside water for marine life life, coral reefs are often referred to as:
d) All of the above
a) The ocean’s cupboard
3. What does Algae gain from corals? b) Rainforests of the sea
a) Food in form of undigested remnants c) Poseidonia’s cornucopia
of a coral’s diet. d) Deserts of the oceans
b) A protected environment
and compounds needed for 10. This is the only natural structure made
photosynthesis by living organisms to be visible from
c) Access to surrounding plants for space:
food. a) Belize Barrier coral reef
d) Supply of fresh water b) The Great Barrier reef
c) The Coral Triangle
4. How do corals benefit from Algae? d) Red Sea coral reef
a) Protection from predators
b) Oxygen and elements needed to 11. When islands gradually sink into the
make carbohydrates sea due to volcanic activity they often
c) Ability to float on sea surface leave behind circular reefs without
d) Layer of Algae on a coral protects it any land in the centre. These reefs are
from excessive exposure to sun. known as:
a) Fringing reefs
5. Corals/ Polyps can reproduce by b) Barrier reef
a) Asexual reproduction (producing c) Double Barrier reefs
identical clones)
b) Sexually (by sending eggs or d) Atoll reefs.
sperms) 12. India has about 5000 km of its ocean
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c) Both asexually and sexually under coral reef. Which of the following
d) Not known Indian land masses / islands do not
have coral reefs formation?
6. What is the proper sequence in reef
formation? a) Andaman & Nicobar Islands
a) Fringing reef, barrier, atoll b) Lakshadweep Islands
b) Barrier, fringing reef, atoll c) Coastal Orissa
c) Atoll, barrier, fringing reef d) Gulf of Kutch
d) There is no set sequence

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