B. Fill in the blanks with the missing word/s. Choose your answer from the box below
| action |
| CONSUMER |
| Coral reef |
| Estuaries |
| food chain |
| herbivore | intertidal zone |
| omnivore |
| producer |
| tidal flats |
_____________

13. Manila Bay and Subic Bay are examples of _____.
14. Not all bays, deltas and coastal areas are estuaries, some are______.
15. Mud flats or____ are areas in estuaries where mud from the seas or rivers is deposited.
16. The __ are areas which are full of corals that act as home for fishes.
17. A __ is a series of organisms in which each organism feed on another organism and so on.
18. A food chain always starts with a __. These organisms capable of making their own food.
19. Humans eat both plants and animals and so they are called_______.
20. As the highest form of living organism, we are called to promote an eco-friendly lifestlye that promotes awareness, affection, and_____.