posted by Andrea .
which of the following are mature(climax) communities?
b sand dune
c temperate rainforest
I'm guessing it's sand dune or wetland
Why are you guessing? I'm sure your text discusses the characteristics of a climax community.
could ya tell me what sand dune and wetland refer to?
A sand dune is a big heap of sand often near a large body of water. Very few plants grow in sand dunes.
A wetland is a swamp or bog or other low lying area with water in it.
so it's the tundra.
Please study this site carefully.