Question # 1

Who suggested that mosquitoes are involved in the transmission of malaria?

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Laveran

Ronald Ross

A.F.A king

None of these

A gardner sees a large snake nearby. He knows that generally snakes sting, so the gardener ran away. The gardener did which of the following?

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Used reasoning

Used observation

Constructed a theory

Tested a hypothesis

Mendal experimented on ____________ plants.

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Potato

Pea

Rose

Pine

Ronald Ross experimented on ____________ and ____________mosquitoes.

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Culex

Anopheles

Both

None

No of steps of biological method are

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Six

Seven

Two

Eight

A scientific theory has which of the following properties?

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It agrees with the available evidence

It cannot be rejected

It has been absolute proven

It does not need to be altered in the light of new evidences

Quinine is obtained form:

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quina-quina

Deodar

Cinchona

Shisham

Ronald Ross was a ____________ army physician.

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British

American

German

Chinese

At which point is a biological most likely to use reasoning?

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While taking observations

During hypothesis formulation

During data organization

None of these

The hypotheses, which are often tested and never rejected become

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Laws

Principles

Theories

Results

Plasmodium was named by:

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Ross

A.F.A.King

Laveran

None

The part of mustard plant which yields oil is

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Leaf

Seed

Root

Flower

What would be the best experimental design for testing a hypothesis that bean plants require sodium?

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Measure the amount of sodium in a few bean plants

Grow bean plants with and without sodium

Look for sodium in leaf tissues

Analyze root contents for sodium

The scientists who observed Plasmodium first time in human blood is:

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Aristotle

Bu-Ali-Sina

Laveran

None of these

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Biology 9th Class English Medium Chapter 2 Online Test MCQs With Answers

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