I think it's B or C but I'm not sure and I don't wanna take chances on a test "which is one benefit that mangrove trees provide to surrounding coastal wetlands"

A) They hold soil in place
B)they store floodwaters
C)they maintain surface water flow
D) They filer water and improve water quality

Explanation:

The mangrove trees helps in holding the soil in place.Their above-ground roots slow down water flows and encourage sediment deposits that reduce coastal erosion. The complex mangrove root systems filter nitrates, phosphates and other pollutants from the water, improving the water quality flowing from rivers and streams into the estuarine and ocean environment.

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the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.