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Human Health and Disease — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYHuman Health and Disease2 Marks
Question
Why are the tumour cells dangerous?
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Answer

  1. Cancer cells grow rapidly, invade and damage the surrounding normal cells.
  2. They starve the normal cells by competing for vital nutrients.
  3. Some cells get sloughed off and reach distant sites through body fluids and start a new (secondary) tumour there, i.e. metastasis.

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