Question # 1

Males with two Y chromosomes have more .................. tendensies.

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Citizenship

Criminal

Good

None

............. is the movement of molecule from a region of higher concentration to a region of lower concentration.

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Osmosis

Diffusion

Both

None

................. is called energy currency of cell.

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ADP

ATP

AMP

All

The scientific name of wolf is _____________

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Canis leo

Canis domestica

Canis lupus

Canis religiosa

In sparrows malaria is spread by

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Culex mosquito

Anopheles mosquito

Marshy areas

Any mosquito

The number of bioelemets in nature is.

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13

14

15

16

........................ helps in grinding of food .

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Tongue

Teeth

Salivary glands

All

Which of these statements is correct about the circulatory system?

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It transports hormones

Capillaries have thicker walls than veins

Systemic circulation carries blood to and from the lunges

All of the above are true

There areas where living organisms interct with non -livnig components of the environment are called.

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Population

Community

Ecosystem

Species

There are _______________ chromosomes in radish.

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46

18

16

23

................... is the hereditary material.

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Protien

Chromosomes

DNA

Nucleus

The sensory layer of eye is:

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Cornea

Iris

Selera

Retina

The parts of the body which receive massages from coordinator and produce particular responses are called:

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effectors

coordinators

neurons

hormones

The components of coordination action are:

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two

three

five

seven

Where the sperms of rabbit are produced?

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Cowper's glands

Prostate gland

Collecting ducts

Seminiferous tubules.

Osteoporosis is a disease of:

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Liver

Stomach

Heart

Bones

Is an Analgesic.

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Diazepam

Aspririn

Paracetamol

Both B and C

In certain parts of body, cell bodies of many neurons form a group enveloped by a membrane. such group is called:

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Tissues

Nerves

Ganglion

Receptors

Sedation thinking can develop by using for a long time:

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Sadatives

Morphine

Antibiotics

Merijuana

The structural and functional unit of lungs is:

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trachea

pharynx

broncioles

alveolus

The work of genetic engineering started in :

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1944

1955

1945

1943

International breeding between individuals for certain traits, or combination of traits is called as.

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Variations

Evolution

Natural selection

Artificial selection

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