The movement or growth of a plant in response to a stimulus… Plant Tropisms The movement or growth of a plant in response to a stimulus…

Some of these ways are: Phototropism Geotropism Hydrotropism Thigmotropism

Plant Tropisms Positive tropism: Plant growth toward a stimulus (Ex. water, sunlight) Negative tropism: Plant growth away from a stimulus (Ex. spilled gas, toxins, too much sun or not enough)

Phototropism Phototropism is a change in the growth of a plant in response to light. The stalk displays positive phototropism growing towards the light.

Geotropism (Gravitropism) Geotropism is a change in the growth of a plant in response to gravity. The stalk displays a negative geotropism growing away from gravity. The roots display a positive geotropism growing towards gravity. Negative Positive

Hydrotropism Hydrotropism is a change in the growth of a plant in response to water. The roots display a positive hydrotropism growing towards water. Positive Water

Thigmotropism Thigmotropism is a movement in which an organism moves or grows in response to touch or contact stimuli. Thigmotropism usually occurs when plants grow around a surface, such as a wall, pot, or trellis. ...but it could be a venus fly trap. Write the definition and illustrate it. Label your illustration as you would any scientific drawing.