Deliberate top-down direction of attention depends on parts of the prefrontal cortex and the

The correct answer is parietal cortex. The parietal lobes can be separated into two functional regions. The first function integrates sensory information to form a single perception.  One includes impression and perception and the other is concerned with integrating sensory input, primarily with the visual system. 

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.  

that is true   : ) hope this you