Question # 1

Which structure actively helps in taking the air out of lungs?

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Nasal cavity

Bronchus

Bronchiole

Diaphragm

How many pairs of homologous chromosomes are present in human body cells:

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22

23

24

25

Arthritus means:

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fracture

inflammation

crystallization

deficiency of calcium

Spinal cord is the continuation of:

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Medulla Oblongata

Frontal lobe

Thalamus

Hypothalamus

The type of symbiotic relationship in which one member get benefit and other is harmed is called.

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Parasitism

Mutualism

Commensalism

Predation

Which of the following is not an example of green house gas?

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CO₂

Methane

Oxygen

Nitrous oxide

Hallucinogens affect on the :

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Sympathetic Nervous System

Central Nervous System

Spinal cord

Hypothalamus

Effective against brain and lungs cancer:

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Beta Endorphin

Interferon

Thymosin

Urokinase

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

Hind brain does not include :

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Pons

Medulla oblongata

Celebrum

Celebelium

Edward Jenner first introduced the world's first:

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Vaccination

Antigen

Antibiotics

Addicitive drugs

Total chemicals in tobacco smoke are:

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1000

2000

3000

4000

Among following, which is source of variations?

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Mutation

Crossing over

Gene flow

All of these

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