Question # 1

Which one of these is NOT a characteristic of a hypothesis?

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Must be consistent with all available data

Must be testable

Must be correct

Must make predictions

The bio diversity of any region depends on:

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Climate

Altitude

Soil and other species

All of these

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

Which of the following chemical is used to identify the starch in leaves?

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KOH

KHCO₃

Ethanol

Iodine solution

Which one of the following is specific in action ?

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Catalyst

Enzyme

Both

None

Who reported that all animal tissues are also composed of individual cells?

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Robert Hooke

Lorenz Oken

Robert Brown

Schwann

................. was a German Botanist.

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Mathias Schleiden

Theodor Sachwann

Robert Brown

Robert Hooke

What happens when a mismatched blood group is injected in recipient?

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Antibodies of the recipient's blood destroy donor's RBCs

Antibodies of the donor's blood breakdown recipient's RBCs

Both of these can happen

None of these and such transfusion can be safe

Fermenting powers of bacteria are used in making:

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Soya sauce

Bread

Cheese

Cheese and yogurt

Each centriole contains .................. triplets of microtubules.

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Five

Seven

Nine

Eleven

Forests are the source of:

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Drugs

Fuel

Timber

All of these

What would be the best experimental design for testing a hypothesis that bean plants require sodium?

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Measure the amount of sodium in a few bean plants

Grow bean plants with and without sodium

Look for sodium in leaf tissues

Analyze root contents for sodium

The clusters of photosynthetic pigments are called:

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Thylakoids

Photosystems

Carotenoids

Chlorophyll a & b

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