Question # 1

The _________ is a major component of plant cell walls.

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Chitin

Peptiodglycan

Cellulose

Cholesterol

A gardener sees a large snake nearby. he knows 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

................. is an important port of ulcer formation.

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Cigarette smoking

Over eating

Spicy food

All

The grater the no. of stomata on leaf , the ............. would be transpiration.

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Higher

Lower

Remain constant

None

Unicellular is.

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Rabbit

Euglena

Horse

Frog

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

When chemical bound broken energy is .............. .

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Released

Formed

Both

None of them

No of steps of biological method are

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Six

Seven

Two

Eight

There are about ____________ different kind of vertebrates on earth.

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12,000,00

47,000

12,000

47,500

Which of the following does not occur in the oral cavity?

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Lubrication of the food

Beginning of protein digestion

Breaking the food into small fragments

All of the above do occur in the oral cavity

Reproducitve organ of the Plant is.

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Root

Stem

Leaf

Flower

Quinine is obtained form:

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quina-quina

Deodar

Cinchona

Shisham

Malaria is from ____________ word Mala means bad and aria means air.

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Italian

English

German

Swedish

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