Question # 1

The structure in human brain which control hunger is

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Amygdala

Hippocampus

Hypothalamus

Thalamus

Saliva and urine are used for evaporative cooling by

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Bat

Dogs

Birds

Seals

The arctic tundra stretches acroos Northern North America, Northern Europe and.

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cyprus

Siberia

Morocco

Nepal

Tissue culture and cloning seek help through.

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Mitosis

Meiosis

endomitosis

Karyokinesis

About 500 ml water is needed to excrete 1g of ammonia

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Hydrogen

Oxygen

Nitrogen

Helium

A plant has a growth pattern called.

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Open growth

Meristem

Growing point

Apical

In man the vestigial organs are

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Ear muscles

Nictitating membrane

Coccyx

All a,b and c

The producers in limnetic zone are

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Amoebae

Cyanobacteria

Crustaceans

Hydrilla

Karyb. Mullis developed the polymerase chain reaction in.

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1963

1973

1983

1993

When will call embryo a fetus.

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After 2 months

After 3 moths

After 5 moths

After 4 months

The causes of green house effect are:

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Over urbanization

Deforestation

Industrialization

All of them

Which light enhance cell division and retards cell enlargment.

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Red

Green

Blue

Violet

In 1953 Watson and Crick proposed structure of the

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RNA molecule

ATP molecule

DNA molecule

NAD molecule

The homeostatic thermostat is present in.

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Pituitary

Hypothalamus

Kidney

Pancreas

The category of plants that has adaptation of small and thick leaves to limit water loss is called.

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Hydrophytes

Xerophytes

Aygrophytes

Mesophytes

Which one is Tall grass

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Andropogon

Panicum

Both a & b

Stipa

The abiotic component of an ecosystem is.

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Temperature

Producer

Consumer

Decomposer

The number of spinal nerve in man is.

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12

30

31

24

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