Plants, animals, yeast, and bacteria all share very similar cell-signaling processes. Which of the following does this suggest about the evolution of cell communication in organisms? Cell communication evolved before the emergence of multicellular organisms.
Intercellular communication evolved before communication between organisms.
It became necessary for organisms to evolve cell communication at the same time.
Organisms evolved cell communication processes in response to their environment.

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.  

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully