ESTUARIES AND INTERTIDAL ZONES

This is partially enclosed body of water along the coast where fresh water from rivers and streams meets and mixes with salt water from the ocean.

• coral reefs

• intertidal zones

• estuary

• mangrove swamp

2. The area that is above the water at low tide and under water at high tide is called.

• estuary

• mangrove swamps

• littoral zone

• intertidal zone

3. The following organisms are found in estuaries EXCEPT___.

• shrimps

• cockles

• sea horse

• polychaete worms

4. The following are reasons why organisms in intertidal zones are small EXCEPT for one.

• freshness of water

• saltines of water

• wave action

• irregular supply of water

5. Saltiness of water is much higher in which area?

• tropical rainforest

• mangrove swamps

• coral reefs

• intertidal zones

Starfish, sea urchins and numerous species of coral are organisms found in?

• estuary

• intertidal zones

• mangrove swamps

• tropical rainforest

7. Estuaries tend to be a productive area because _____.

• the temperature is high

• the water is salty

• nutrients carried by rainwater

• wave action is strong

8. Which of the following environment is the most productive?

• estuarine environment

• forest

• grassland

• agricultural land

9. What animals do predators from estuaries feed?

• burrowing animals

• crawling animals

• gliding animals

• swimming animals

10. The sediment in estuaries tends to be _____ than that of sand beaches, consisting primarily of mud.

• coarser

• finer

• bigger

• smaller