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STD 12 - 7. human health and disease — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 7. human health and disease1 Mark
MCQ
Assertion : Plasmodium vivax is responsible for malaria.

Reason : Malaria is caused by polluted water.

  • A
    If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
  • ✓
    If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
  • C
    If the Assertion is correct but Reason is incorrect.
  • D
    If both the Assertion and Reason are incorrect.
✓

Answer

Correct option: B.
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
b
Malaria is caused by Plasmodium whose sexual phase occurs in the mosquito Anopheles.  When female Anopheles feed on blood, they can serve as vector host for malarial parasite.

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