A 5% solution separated from a 10% solution by a selectively permeable membrane is considered to be hypertonic relative to the 10% solution *

In what for do plants utilize nitrogen? why do they need nitrogen?

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

The negative impacts of nonnative species generally outweigh the positive impacts