OVERVIEW OF THE IMMUNE SYSTEM
LYMPHATIC TISSUES AND ORGANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is an external stimulus that can cause a response in a human?
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Bacteria in your lungs
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Family history of an illness
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Genetics
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Smoking
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Explanation:
Detailed explanation-1: -An external stimulus is the one which the organism receives from its external environment. An internal stimulus is the one which arises within the body. The external stimulus includes touch and pain, vision, smell, taste, sound, and balance. Examples of internal stimulus include hunger, thirst, and emotional states.
Detailed explanation-2: -The smoke that is inhaled and then exhaled from the smoker’s lungs is called mainstream smoke (MS). Sidestream smoke (SS) is the smoke that enters the air directly from the burning end of a cigarette, cigar, or pipe.
There is 1 question to complete.