Asteroid hormone reaches its target cell. which event happens next?
a. it binds itself to the receptors on the surface of the cell membrane, which activates enzymes inside the cell.
b. it passes through the cell membrane and attaches itself to a receptor protein inside the cell.
c. it passes on the signal to the secondary messengers inside the cell, which activate the receptors on the cell membrane.

B. It passes through the cell membrane and attaches itself to a receptor protein inside the cell.

Explanation:

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.