AP BIOLOGY

Detailed explanation-1: -The turgor pressure inside of the plant cells must be high in order to have enough force to push up on the soil. If the turgor pressure is low, the seedling will not have enough force to emerge and overcome the force of gravity. 1.

Detailed explanation-2: -When a plant wilts due to a drought, it is responding to which of the following internal stimuli? Decreased water pressure within the plant cells.

Detailed explanation-3: -Plant roots always grow downward because specialized cells in root caps detect and respond to gravity. This is an example of a tropism. A tropism is a turning toward or away from a stimulus in the environment. Growing toward gravity is called geotropism.

Detailed explanation-4: -Touch responses can turn plants into aggressors against animals, trapping and devouring them, and enable flowers to be active in ensuring crosspollination and shoots to climb to sunlit heights.