Direction: Read each question carefully write the letter of the correct answer on
the space provided.
1. What do you call place where living and non-living things interact with one another?
A economy
B. ecology
Cecosystem
D. environment
2. Which of the following is not a blotic component of the ecosystem?
A. animal
Baxygen
o plants
Tiving things
3. What is the role of the crabs in an intertidal zone?
A They serve as primary source of energy
8. They serve as herbivores that eat plants in this ecosystem
They serve as carnivores that eat small animals in this ecosystem.
D. None of the above
4. Which statement best desches the intertidal zone?
A. A place that appears during low tide and submerge during high tide
B. A place where fresh water in the river meets with salt water in the sea
A place in which most mammals and other wild stay and reproduce
0. A place found at the middle of the ocean where marine animals
5. Which of the following can affect the quality of water in the estuaries?
A growing of varied vegetation along the shore
B. increase of animals population in the area
water run off carrying pesticides, fertilizers and manure
D. too much exposure of sun's heat
6. How can you help in protecting and conserving the estuaries?
A Dump garbage in bodies of water
B. use dynamite for fishing
C. Plant trees on denuded forest
D. Collect and harvest sea grasses