<span>The accurate line represented by line b because during such
experiment ( osmosis or mass transfer) there would be a time where the system
be in equilibrium meaning that that the net movement will be zero. In line B at
time starting 15 min equilibrium is reached no further movement is attained
beyond it.</span>
In most ecosystems, all or almost all energy in the carbon compounds will originally have been harvested by photosynthesis in producers.
Answer: I believe the answer is a. sorry if I am wrong.
2B,3B should be it becasue of 5B