What does the term "limiting nutrient" mean when
referring to nitrogen?

A. Nitrogen does not control the rate
productivity in an ecosystem.

B. Nitrogen controls the rate of
productivity within an ecosystem.

C. Nitrogen is limited, so it is reserved
especially for bacteria.

Ais a group of individuals of the same that exist together in the same place at the same time

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.