10th Class Science Life Processes Question Bank 10th CBSE Science Life Processes

  • question_answer
      Why is cigarette smoking injurious to health?

    Answer:

                      Functions of lymph nodes are: (i) Lymph nodes produce and maintain the lymphocytes of blood. These are only found in the mammals. (ii) Lymph nodes filter the blood and remove poisonous a substances, e.g., bacteria, debris, etc.


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