MICROANATOMY

Detailed explanation-1: -In the nervous system, internal and external stimuli can elicit two different categories of responses: an excitatory response, normally in the form of an action potential, and an inhibitory response.

Detailed explanation-2: -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. Sense organs contain groups of receptors that respond to specific stimuli.

Detailed explanation-3: -➡Reflex action is the response which occurs in he body of an organism due to an external stimulus.

Detailed explanation-4: -Answer and Explanation: The characteristic of life that best describes the process of homeostasis is that living things adapt to their environment. Homeostasis is a balance, and all living things have a narrow range of conditions they need to maintain, such as temperature, pH, sugar levels, water, salt and more.