LET'S SEE WHAT YOU ALREADY
KNOW
After studying this module, how much have you already know about our ecosystem.
Choose the letter of the correct answer
1. Which is a coastal ecosystem that is made up of layers of skeletons of a type of marine organism?
b. forest
C. coral reef
d. coastal zone
12. What are found far offshore and compromise a ring-shaped reef enclosing a circular lagoon and more or less circular barrier
reef extending all the way around a lagoon without a central island?
A Atoll
B. Apo Reef
C. Barrier Reefs
D. Fringing Reels
A bay
3. Which of the following is NOT a factor that contribute to the formation of Coral Reefs?
A Temperature
B Stable Salinity
C Water Current
D. Water movement
4. How do you call the marine relationshiplinteraction that occurs in the marine ecosystem where both organisms are benefitted?
D. Commensalism
A Mutualism
C. Parasitism
5. How can we show an attempt to save the coral reefs?
A Reforestation
B. Qutting down trees
C. Use dynamite in fishing
D. Get coral reefs for omamental purposes
6. Which of the following is a low elevation of fresh, brackish, or saltwater wetlands that are dominated by woody plants such as
B. Lake
D. Swamp
shrubs ar trees?
A Sea
C. River
7. Which is necessary and an important abiotic component for a heathy mangrove swamp ecosystem?
B. Salt Water
C. Fresh Water
D. Brackish Water
A Sea Water
Keep calm, you
did not set all the
crkmansut You
will do better
8. What species can benefit more in a Mangrove ecosystem??
A Goat
B. Horse
C. Carabao
D. Crustaceans
9. Which of the following is NOT a way to conserve wild life?
A Protect a sanctuary
B. Buy products made up of animal skin.
C. Support projects of the govemment in protecting the wildlife ecosystem
D. Join organizations that conduct educational campaigns and give information on
how to protect and conserve wildlife ecosystems.
10. How will increasing species diversity affect ecosystem?
A It only increase the productivity of an ecosystem
B. It increase the efficiency and productivity of an ecosystem
C. It do not increase the efficiency and productivity of an ecosystem
D. It increases only the efficiency and not productivity of an ecosystem
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