MCQ
Natural selection where more individuals acquire specific character value other than the mean character value, leads to:
- ✓Directional change
- BDisruptive change
- CRandom change
- DStabilising change
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$I.$ mass of neoplastic cells
$II.$ cells that grow very rapidly and damaging the surrounding normal tissue
$III.$ cells that show the property of metastasis
Which of the statements given above are correct?
$R$ : Pathogens often develop resistance to existing antibiotics.