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CBSE Notes 2011-2012 » XII-Biology

Human Health and Disease

When is a tumour referred to as malignant ?

Short answer question

When is a tumour referred to as malignant ?

What are primary lymphoid organs ? [Foreign 2005]

Short answer question

What are primary lymphoid organs ? [Foreign 2005]

Name two chemical alarm signals, which cause inflammatory response. [AI2005C]

Short answer question

Name two chemical alarm signals, which cause inflammatory response. [AI2005C]

How does saliva act in body defence ? [Delhi 2004]

Short answer question

How does saliva act in body defence ? [Delhi 2004]

Name the type of cells that produce antibodies. [AI 2004]

Short answer question

Name the type of cells that produce antibodies. [AI 2004]

What are interferons ? [Foreign 2004; Delhi 99, 98C]

Short answer question

What are interferons ? [Foreign 2004; Delhi 99, 98C]

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