BIOMOLECULES AND ENZYMES

Detailed explanation-1: -A change in an organism’s surroundings that causes the organism to react is called a stimulus (plural stimuli). An organism reacts to a stimulus with a response-an action or change in behavior. Another example is if you are cold, you shiver. The cold is the stimulus while the shivering is the response.

Detailed explanation-2: -Response : Response are any type of behavior of a living organism that results from a stimulus. Hence, the change in an organism resulting due to a stimulus is called response or reaction.

Detailed explanation-3: -Receptors. Receptors are groups of specialised cells. They detect a change in the environment stimulus. In the nervous system this leads to an electrical impulse being made in response to the stimulus.

Detailed explanation-4: -Response: how the organism reacts to a stimulus and results in a change in behavior. (It is a fancy way of saying “effect”.) Example: Getting a drink when you are thirsty.