IkechukwuW194103 IkechukwuW194103
  • 03-11-2022
  • Biology
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Which of the following is not part of the first line of defense of human’s immune system A. Skin B. White blood cellsC. Saliva D. Sweat

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ElletZ524929 ElletZ524929
  • 03-11-2022

The first line of defense of the human's immune system is referred to as unspecific barriers whose main function is to block and prevent the entry of pathogens. It is composed of the skin, mucous and secretion such as saliva and sweat. Therefore, the correct answer to this question is option B, white blood cells, which have a more specific .

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