Respiratory system I think. I MAY BE WRONG.
Hope I helped!
Answer:
negative externality
Explanation:
In simple words, negative externality refers to the loss that an unrelated third party experiences due to any economic transaction that occurs between the other two independent entities.
Under this concept the two parties do not deliberately effect the third party and generally that third party do not get any chance to tackle the loss before it actually happens. Diseases happening to general public due to pollution by factories is the prime example of negative externality.
Respect like caring of others feelings and doing them right.
<em>knee is a joint...
knee caps are made up of cartilage ,, so it is connective tissue...
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