Question # 1

The recovery of one of paper can save how many trees.

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17

170

200

1000

Number of cranial bone is:

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8

14

22

33

The function of male and female gametes is called:

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fertilization

pollination

propagation

reproduction

The nitrate forming bacteria are.

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Rhizobium

Nitrosomonas

Nitrobacter

Cocci

The type of environment in which a particular species lives is called.

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Ecosystem

Habitat

Biosphere

Community

Charles Darwin proposed that organisms produce many more offspring than can possible survive on the limited amount of resources available to them. According To Darwin, the offspring that are most likely to survive are those that.

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Are born first and grow fastest

Are largest and most aggressive

Have no natural predators

Are best adapted to the environment.

For which purpose antobiotics are use:

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For virul infections

For treatment of becterial infection

Against infection

A and B both

One of the drugs derived from minerals:

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Aspirin

Opium

Iodine Tincture

Streptomycin

Medicine prepared in Laboratory are called:

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Synthetic

Plantis made

Animals made

Minerals made

Bacterium which prepares human growth hormones was synthesized in.

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1980

1910

1970

1977

Largest unit of Ecology is:

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Species

Community

Ecosystem

Biosphere

Which neurons are present inside the central nervous system?

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Sensory neurons only

Motor neurons only

Sensory and motor neurons both

Interneurons only

Ectoparasite is

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Ascaris

Amoeba

Leech

Plasmodium

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