Which description best explains the role of dna im the differentiation of the cells within an organism? a. each cell has a different set of dna that determines the traits of the cell and causes differentiation. b. each cell has the same dna, so dna does not play a role in differentiation. c. cells do not use the same sections of dna in the same proportions, at the same time in development, which leads to differentiation. d. dna mutates differently in each cell depending in the environment causing each cell to differentiate over time.

All the cells in a person's body have the same DNA and the same genes. However, the difference between cells in different tissues and organs is that the "expression" of the genes differs between cells. For example, liver cells have different proteins than skin cells, even though their DNA is the same.

So your answer is B

answer; //the above statement is (false);

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.