1__is formed when organisms of the sam kind live together
2__refers to the abundance of different living organisms living on an area
3.mud flats are areas in estuaries where__is deposited from the seas or rivers,
4.mangrove forests are areas in estuaries that are filled with____
5.____are areas that are filled with seawater during high tides and are drained during low tides
6.____protects the coast against erosion caused by waves, winds and tides
7.____are ares in the estuaries where solid rocks are found
8.salt-tolerant plants are called____
9.___provide shelter the thousands of fish
10.____like sea lettuce and sea spaghetti,provide food for the herbivores in mud flats