QUESTION 5
What is a stem cell?
O A. a hollow, fluid filled ball of cells
OB-a cell that can give rise to more cells of its kind, along with at least one specialized cell
o C. an exact genetic copy
O D. a cell that can give rise to other types of cells

B

Explanation: I would say that it is B because when i looked up the definition it said that the stem cell was able to give arise to more cells of the same type but i might be wrong.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.