Question # 1

Leukemia is a disease in which leucocytes increase ...................... .

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Normally

Abnormally

Both

None

The number of bioelemets in nature is.

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13

14

15

16

Basic unit of classification is:

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Genus

Order

Family

Species

Which of these materials is not a component of plasma membrane?

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Lipids

Carbohydrates

Proteins

DNA

There are _______________ chromosomes in humans.

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46

18

16

23

Ribose is a _______ carbon sugar.

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Two

Three

Five

Ten

Which of the following variable is least likely to affect an enzymes rate of reaction?

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Temperature

pH

Carbon dioxide concentration

Enzyme concentration

Stomach open into ............... .

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Small intestine

Large intestine

Both a and b

None

Where are the villi found?

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Esophagus

Stomach

Small intestine

large intestine

Horticulture belong to.

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Gardening

Poultry

Fishries

Modicine

The tentative explanation of the observation is called

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Problem

Hypothesis

Deduction

Result

The death of the heart tissue is called:

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Arterioclerosis

Atherosclerosis

Myocardial infarction

Thalassemia

The concentration of carbon dioxide in the environment is:

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0.3%

0.03%

3%

3.01%

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