Question # 1

An electric current in a conductor is ude to the flow of.

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Positive ions

Negative ions

Positive charge

Free electrons

Chromosomes are........... structures.

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Round

Circular

Long

Thread like

Bases react with acids to form water and........

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Hydrogen ions

Ammonia

Salt

Hydroxide ions

A relationship where two species live togetehr closely is called.

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Mutualism

Commensalism

Symbiosis

Hebitate

The DNA molecule consists of ............ strands.

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Two

Three

Four

Five

Before mitosis, sets of chromosomes are.

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Two

Three

Four

Five

When same amount of force is applied on differente areas, it exerts.

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Low pressure on small area

No Pressure on small area

High pressur eon small area

High pressur eon large area

The organism that contains a.... gene in its cells is called transgenic organisms.

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Additional

Internal

Foreign

Isolated

To make bioplastic, we heat the solution.

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70 oC

75 oC

80 oC

85 oC

Speed of light through water is about.

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300000 km/s

250000 km/s

225000 km /s

200000 km/s

It is an anti -viral proteins.

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Vaccines

bet- endorphin

Interferon

Growth hormone

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