Online Test

Question # 1

How many percent of the light falling on the leaf surface is absorbed:

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5%

6%

7%

1%

Respiration is a.............. process.

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Constructive

DestructIon

Both

None

Which of the following is not unicellular organisms?

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Amoeba

Paramecium

Frog

Euglena

There are about ____________ different kind of vertebrates on earth.

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12,000,00

47,000

12,000

47,500

In Pakistan there are about _____________ kinds of plants.

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3000

4000

5000

6000

Cells of _______________. tissues are flattened and irregular in shape.

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Epidermal

Ground

Supporting

Collenchyma

Enzymes are made up of ............. .

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protein

Carbohydrates

Lipids

Triglyceride

Activation energy is required to:

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Activation enzyme

Start a reaction

Speed up a reaction

None

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

Basic unit of classification is:

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Genus

Order

Family

Species

Blood circulation in humans being was first described by Muslim Anatomist ............... .

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William Harvey

Ibn-al-Nafees

Bu Ali Seena

Ibn Al Haitehm

Which of the following structure is absent in animals?

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Spindle

Centrioles

Chromatids

Phragmoplant

............... metabolism is a major component stem & leaf growth.

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Nitrogen

Oxygen

Carbon

All

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