BOTANY

Detailed explanation-1: -Plants respond to their environment in a variety of ways. The response of an organism, usually a plant, to an environmental stimulus is called a tropism. Some common plant stimuli include light, gravity, water, movement of the sun, and touch. The naming of the tropism is associated with the stimulus.

Detailed explanation-2: -Environmental factors, including light, chemical nutrients, water, and gravity are stimuli that can provoke tropisms in a plant. The plant grows in the direction of the stimulus as hormones inside the stem, root, and leaf systems in a plant aid in the elongation and growth process of the plant toward the stimuli.

Detailed explanation-3: -In biology, we can define stimulus as the “detectable change (physical or chemical) in the environment of an organism that results in some functional activity”. For example, sunlight acts as a stimulus for plants that helps them grow or move towards it.

Detailed explanation-4: -A stimulus is a change in the external or internal environment that produces a physiological response. When applied to sensory receptors, it provokes behavior or response. Internal stimuli (such as changes in blood pressure) and external stimuli (tactile, sound, smell, taste, vision, etc.).