Solved MCQs of Biology Class 9 Chapter 2

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Solved MCQs of Biology Class 9


Ronald Ross was a ____________ army physician.
British
American
German
Chinese

A gardener sees a large snake nearby. he knows generally snakes sting, so the gardener ran away. The gardener did which of the following?
Used reasoning
Used observation
Constructed a theory
Tested a hypothesis

Malaria is from ____________ word Mala means bad and aria means air.
Italian
English
German
Swedish

Scientific law is interchangeable with :
Hypothesis
Theory
Deduction
Observation

In man Plasmodium multiplies in the
Wall of stomach
Blood
Skin
Kidney

” Mosquitose are involved in the spread of malaria” was said by:
Laverna
A.F.A King
Ronald Ross
Darwin

The tentative explanation of the observation is called
Problem
Hypothesis
Deduction
Result

The bark of ____________ tree was the cure for malaria.
Deodar
Cendar
Cinchona
None

People who used mosquito nets suffered ____________ from malaria.
More
Less
Both
None

A scientific law is an irrefutable:
Observation
Theory
Principle
None of these

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