Well, if you are around people who smoke, and you are inhaling that smoke, technically. you are smoking.
Answer:
antibodies
Explanation:
The third line of defense is specific resistance. This system relies on antigens, which are specific substances found in foreign microbes. Most antigens are proteins that serve as the stimulus to produce an immune response. The term "antigen" comes from ANTI-body GENerating substances.
The answer is A. The short periods of intense activity are called intervals and it is used in strength building exercises.
Depression is a warning sign that you may be dealing with a serious issue.
<h3>What is a warning sign that you may be dealing with a serious issue?</h3>
A warning sign that you are dealing with a serious issue is depression because depression negatively affected the mental well-being. Depression is related to mind. If we get depressed or tensed, our mind did not work properly. People get depressed when they face tense situation or problem in their lives. This depression can leads to serious health problems. This is why doctor recommend depressed free environment for the mind in order to work properly.
So we can conclude that depression is a warning sign that you may be dealing with a serious issue
Learn more about mental here: brainly.com/question/933852
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