Question # 1

Reduce the possibility of infection on skin.

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Disinfectants

Antibiotics

Antiseptics

Digitalis

In ecosystem the role of decomposers is played by

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animals

plants

bacteria and fungi

algae

Edward Jenner first introduced the world's first:

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Vaccination

Antigen

Antibiotics

Addicitive drugs

Find the INCORRECT statement:

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Bone is where most blood cells are made.

Bones serves as a storehouse for various minerals.

Bones is a dry and non-living supporting structure.

Bone protects and supports the body and its organs.

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

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Parasitism

Mutualism

Commensalism

Predation

The cells of cartilage are called:

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Chondrocytes

Osteocytes

Collagen

Osteo clast

A DNA molecule consists of______ polynucleotide strands.

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2

3

4

5

Neurons in which direction of nerve impulses is towards brain cord are called;

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Sensory Neurons

Associative Neurons

Motor Neurons

_{Nerve impuse}

The largest part of brain is;

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Forebrain

Midbrain

Hindbrain

Spinal cord

____________ hydrogen bonds are present between cytosine and guanine:

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2

3

4

5

Vocal cards are present in:

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Nasal cavity

Pharynx

Larynx

Trachea

A muscle which contract and straightens the joints called;

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Flexor

Receptor

Exrensor

Effector

U-Shaped part of renal tubule is called.

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Renal corpuscle

Glomerulus

Loop of henle

Bowman's capsule

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