You forgot to ask a friend to water your plants while you were on vacation. When you got home you noticed they were wilting. What decreased to cause an internal stimulus that made the plant to wilt?

Light
External Pressure
Turgor Pressure
Heat

The appropriate answer is Turgor Pressure. Turgor pressure is also known as hydrostatic pressure and is the force of the water inside the cell of the plant that pushes the cell membrane against the cell wall. When this force is strong the cell or the plant is said to be turgid. This pressure is maintained by the process of osmosis.

Explanation:

Plants react differently to the stimulus of light. They will grow or turn leaves towards light.

Hope this helps : )