Assessment 1. Multiple Choice. Choose the letter of the best answer, write the chosen letter on a separate sheet of paper. 1. Mudflats are area in estuaries where is deposited from the seas or rivers. a. corals reefs b. modernized rock d. tides C. mua 2. All of these are plants you might see in the intertidal zone. except: a. daisy c. kelo b. green algae d. seaweed 3. What causes the changing salinity of water in estuariese a, the amount of sunlight b. the hotness and coldness of water ITINE c. the kinds of rocks found in the estuary d. the continuous flow of fresh and saltwater 4. The Low Tide Zone (or Lower Littoral Zone) is all these things except: a. It has no organisms. b. It has tons of wildlife. c. It gets dry only for a short time during low tide. d. It has the greatest biodiversity of the three zones