Answer:
100 j
Explanation: the organism only consumes 10% of the original amount of energy
The plant will wilt because the concentration of water in saltwater is lower than the concentration of water in the plant itself (because it is a freshwater plant). Water will diffuse out of each individual cell and the cell will crenellate (or shrivel up) causing the plant to wilt.

velocity is a vector so it has a magnitude and direction so the answer would be B
Water.
Osmosis is the movement of water.
Hope this helps!