Which cells are associated with the humoral and cell-mediated parts of the immune system?

B cells and T cells, respectively.

Explanation:

Humoral and cell-mediated immunity are parts of adaptive immunity, which is acquired by an individual in his lifetime due to exposure of pathogens. Cells involved in humoral immunity are B lymphocytes or B cells. These cells form antibodies to fight against infections.

Cells involved in cell-mediated immunity are T lymphocytes or T cells. These cells release various cytokines that activate other immune cells or kill pathogens directly.

Thus, the correct answers are B cells and T cells, respectively.

Water potential is affected by two factors: pressure and the amount of solute. For example, imagine a red blood cell dropped into distilled water. Water will move into the red blood cell and cause the cell to expand, stretching the flexible membrane.