Question

The stimuli that comes from within organism's own body is called

• A. external stimuli
• B. internal stimuli
• C. hormonal stimuli
• D. chemical stimuli

Answer 1

The correct option is B

internal stimuli

The correct answer is option B.

Explanation of the correct option:

1. Stimulus is an event or any change in the external environment that evokes a specific functional reaction in an organ or tissue.
2. Stimulus can be internal or external.
3. An internal stimuli is the one which arises from within the body of the organism.
4. The sensations of hunger, thirst and fear are examples of internal stimuli.

Explanation of the incorrect options:

Option A:

External stimuli is the one which an organism receives from its external environment.

Option C:

Hormonal stimulation involves the activities that lead to the maturation of the fish sex cells.

Option D:

Chemical stimuli takes place by release of chemicals.

So the correct answer is The stimuli that comes from within organism's own body is called Internal stimuli.