Question # 1

The protein filament whihc binds to the calcium is

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Actin

Myosin

Troponin

Tropomyosin

P660 is quiescent from, is converted to active p 730 by the absorption of.

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Blue light

Red light

Orange light

Yellow light

Tube feet are locomotor organs of.

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Jelly fish

Cottle fish

Star fish

Silver fish

The protection of internal environment from the harms of fluctuation in external environment is termed as.

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Osmoregulation

Excretion

Thermoregulation

Homeostasis

Which harmones is male stimulates the production of testosterone.

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TSH

FSH

LTH

ICSH

When the human blood leaves the capillary bed of the tissue, most of the carbon dioxide is inthe form of:

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Carbonic acid

Bicarbonate ions

Carboxylic acids

None of them

According to one of the speculations life may have begun deep in the oceans in underwater hot springs called hydrothermal

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Apertures

Gaps

Vents

Outlets

Which one of the following condition is resulted from excess GH in adults?

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Cushing's disease

Acromegaly

Hyperthyroidism

Diabetes mellitus

Which pair of chromosome fails to segregate in down's syndrome.

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7th

15th

19th

21st

Fresh water flatworms excrete

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Very dilute urine

Very concentrated urine

Slightly concentrated

Moderately concentrated urine

Shifts in water-solute balance are managed primarily by:

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Respratory system

The urinary system

Sweating

The circulatory system

The best way to increase food production from ecosystem view point is:

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To increase cultivable land by clearing forest

Use of excessive fertilizers

Use of high quality pesticides

Use of genetically improved varieties of seeds

The discoidal cap of cells above the blastocoel is called.

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Ectoderm

Endoderm

Mesoderm

Blastoderm

Each nuclear power station only can last for about

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10 years

20 years

30 years

40 years

Evolutionary relationships among species are reflected in their

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DNA and proteins

Emigration

Immigration

Inheritance

The leaf unrolling is promoted by red light in.

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Monocot

Dicot

Ferns

Gymnosperm

Endangered species of plants have been recorded to more than.

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300

500

600

800

Rickets is due to deficiency of vitamin.

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A

C

D

E

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