Question # 1

What may be the reason that children need more calcium and iron?

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Both calcium and iron for bones

Both calcium and iron for blood

Calcium for blood and iron for bones

Calcium for bones and iron for blood

Volvox is example of.

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Red alga

Brown Alga

Green alga

Blue green alga

Stomata close when the guard cells;

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Lose water

Gain chloride ions

Became turgid

Gain potassium ions

Fertilizers are of ....... types.

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Two

Three

Four

None

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

Which of the followings is the symptom of malaria?

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Chills

Fevers

Recurring attacks

All

The word virus is derived from Latin word _____________

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Venomeq

Bacter

Venus

Both a& b

The study of fossiles is called.

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Immunology

Pharmacology

Paleontology

Parasitology

According to FAQ more than -------people die of starvation every day:

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10,000

3,000

25,000

50,000

The part of earth where communities of living organisms exists is called.

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Habitat

Biosphere

Population

Ecosystem

viruses are not affected by ____________

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PH

Acidity

Antibiotics

High temperature

The plasma membrane does all of these except ________

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Contains the hereditary material

Acts as a boundary or border for the cytoplasm

Regulates passages of material in and out of the cell

Functions in the recognition of cell

Which of these cellular organelles have their own DNA?

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Chloroplast

Nucleus

Mitochondria

All of these

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