The circulatory system — Biology STD 10 — Question
ICSE BoardEnglish MediumSTD 10BiologyThe circulatory system1 Mark
MCQ
The chief function of lymph nodes in mammals is to:
A
Produce WBCs
B
Produce hormones
C
Destroy old RBCs
✓
Destroy pathogens
✓
Answer
Correct option: D.
Destroy pathogens
(d) Destroy pathogens Explanation: Lymph nodes are part of the immune system and help in the defense against pathogens by filtering harmful substances from the lymph fluid and by housing lymphocytes that destroy these pathogens.
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