Stimulus and Response

Front

What is a stimulus?

Back

A stimulus is any change in the environment that can provoke a response from an organism.

Front

What is an internal stimulus?

Back

An internal stimulus is a signal that comes from within an organism, such as hunger or thirst.

Front

What is an external stimulus?

Back

An external stimulus is a signal that comes from outside an organism, such as light, sound, or temperature.

Front

What is a response?

Back

A response is the reaction of an organism to a stimulus.

Front

What is a learned behavior?

Back

A learned behavior is a response to a stimulus that an organism has been taught or has learned through experience.

Front

What is an instinct?

Back

An instinct is a natural, automatic reaction to a stimulus that an organism is born with and does not need to learn.

Front

Can you give an example of an instinct?

Back

An example of an instinct is a baby bird opening its mouth to be fed when it sees its parent.

Front

What is homeostasis?

Back

Homeostasis is the process by which an organism maintains a stable internal environment despite changes in external conditions.

Front

What happens when a doctor taps on a patient's knee?

Back

The stimulus is the tap, and the response is the patient's leg kicking.

Front

How does a chef's reaction to a hot pot illustrate stimulus and response?

Back

The hot pot is the stimulus that causes the chef to drop it, which is the response.