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Which of the following helps prevent the entry of pathogens into humans? (A) Cilia (B) Antigens (C) B lymphocytes (D) Inflammation response - HSC - SSCE Biology - Question 2 - 2004 - Paper 1
Question 2
Which of the following helps prevent the entry of pathogens into humans? (A) Cilia (B) Antigens (C) B lymphocytes (D) Inflammation response
Worked Solution & Example Answer:Which of the following helps prevent the entry of pathogens into humans? (A) Cilia (B) Antigens (C) B lymphocytes (D) Inflammation response - HSC - SSCE Biology - Question 2 - 2004 - Paper 1
Step 1
Identify the correct option
Answer
The correct answer is (A) Cilia. Cilia are hair-like structures that line the respiratory tract and help to trap and expel pathogens and debris, thus preventing their entry into the body. They play a crucial role in the innate immune system by providing a barrier to pathogens.