A reaction
Thigmotrophism
-- falling -- orbiting
Thigmotrophism
Ido
Movement in response to light is called phototaxis, and in response to chemicals is chemotaxis. More specifically, movement towards a stimulus is positive and away from is negative. For example, positive chemotaxis is movement of a cell towards nutrients.
)Movement or activity of an organism in response to a stimulus such as light.
The responses of plants to external stimuli is called Tropism.Here are some tropisms:* Chemotropism, movement or growth in response to chemicals * Geotropism (or gravitropism), movement or growth in response to gravity * Heliotropism, movement or growth in response to sunlight * Hydrotropism, movement or growth in response to water * Phototropism, movement or growth in response to lights or colors of light * Thermotropism, movement or growth in response to temperature.
Response means reaction, as in a movement, change, or emission (like heat, light, or sound).
A responsive movement of a plant that is not dependent on the direction of the stimulus is called a non-directional or non-tropic movement. Examples of non-directional movements in plants include thigmonasty (response to touch), nastic movements (response to changes in environmental conditions), and nyctinasty (response to changes in light).
The Lombard's movement, also known as the Lombard reflex, is an automatic upward movement of the eyes that occurs in response to increased ambient light. This reflex helps protect the eyes from bright light by causing the eyes to raise or squint to reduce the amount of light entering the eye.
The Progressive Movement was mainly a response to the industrialization and urbanization of the United States.
Phototropism is a plant's growth response to a light source, determining which direction it grows in. Positive Phototropism is the tendency for a plant to grow towards the light; Negative Phototropism is when it grows away from the light.