Pain is not an external stimulus; rather, it is a complex sensory and emotional experience triggered by the brain in response to actual or potential tissue damage. While external stimuli, such as injury or illness, can initiate the pain response, the perception of pain itself occurs internally as the brain processes these signals. Thus, pain involves both external factors and the individual's internal neurological and psychological responses.
external is thunder
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A mockingbird drinking water from a bird bath illustrates both external and internal stimuli. The external stimulus is the presence of the bird bath, which provides a source of hydration in the environment. The internal stimulus is the bird's physiological need for water, driven by thirst and the need to maintain hydration. Together, these stimuli motivate the mockingbird to engage in the behavior of drinking.
The primary stimulus for skin is tactile sensations, which include touch, pressure, temperature, and pain. These stimuli are detected by specialized sensory receptors located within the skin. Additionally, the skin also responds to environmental factors such as UV radiation and mechanical injury, triggering various physiological responses. Overall, skin serves as a critical interface between the body and the external environment.
Hunger is primarily considered an internal stimulus, as it originates from physiological processes within the body, such as hormonal changes and energy needs. However, external factors like food availability, social situations, and cultural influences can also trigger or influence feelings of hunger. Thus, while the sensation of hunger arises internally, external stimuli can affect how and when we respond to it.
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The difference between an external stimulus and an internal stimulus is that an external stimulus is a stimulus that comes from outside an organism. But an internal stumulus is a stimulus that comes from inside an organism. An example for an external stimulus can be that when you are cold, you put on a jacket. An example for an internal stimulus is that when you feel hungry, you eat food.
It is an external stimulus.
External Stimulus
The term for an involuntary reaction to an external stimulus is a reflex.
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Tropism is the response plants have towards external stimulus.
An animal's immediate automatic response to an external stimulus will vary depending on the circumstance. When the external environment is stimulated there is a response that is triggered.
stimulus
Tropism is the response plants have towards external stimulus.
Internal stimulus is a signal that comes from within an organism, such as hunger or pain, that triggers a biological response. It is generated by the organism itself rather than from the external environment. Internal stimuli help to regulate an organism's physiological processes and behaviors.
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