a certain's plant root contain higher concentrations of nitrate than the soil that surrounds them. Which mechanism explains the movement of nitrates form the soil into the plant's roots?

Question

a)osmosis
b)facilitated diffusion
c)active transport
d)filtration

I chose c) active transport

anyone knows for sure? thanks

Answer 1

Right.

Here's a previous answer to this question.

http://www.jiskha.com/display.cgi?id=1280935799