Question # 1

Oxone molecule is made up by binding of three atoms of

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Nitrogen

Oxygen

Hydrogen

Carbon

The form of learning which involve a diminish of response to repeated stimuli

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Imprinting

Habituation

Insight learning

Large learning

________ attach bone to bone and are slightly elastic.

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Ligament

Tendon

Cross bridges

Z- line

Each bivalent has

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Twochromatids

Four chromatids

Both a & b

None of these

Mountain of Karakoram are located in major terrestrial ecosystem in Pakistan.

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Grass land

tundra

Coniferous alpine forest

Temperate deciduous forest

Mature bone cells are called as

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osteocytes

Chondrocytes

Osteoblasts

Blastocytes

Tundra ecosystem is located on Mountains

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Kara-koram

Hindukush

Salman

Both a & b

Microscopic gap between the two neurons is called as

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Synapsis

Collapse

Preapse

Axons

The process of moulting is controlled by the nervous system and a hormone called.

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Aldosterone

Ecdysone

Oxytocin

Androgen

The receptor cells of Planaria are sensitive to.

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Light and pressure

Light pressure and touch

Touch , pressure and chemicals

Light, pressure, touch and chemicals

Kidney health is described in terms of :

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The number of kidney stones

Rate of filteration

Water retension

Blood clot

In tropical and subtropical grassland rain reaches about

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1500 mm

2000 mm

2500 mm

3000 mm

The actual reduction division is.

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Meiosis -I

Mitosis

Cytokinesis

Meiosis -II

Which is the most important mechanism for water loss from the body?

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Excretiong in urine

Sneezing

Sweating

Eleminatin in feces

Which evemt si not associated with the activity of expiration?

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Contraction of diaphragm

More dome like shape of diaphragm

Back ward& downward movement of rib cage

Relaxation of intercoastals muscles

A gene with initiation codon, which encodes the amino acid methionine is.

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UAA

UAG

AUG

UGG

The active uptake of sodium ions in the loop of Henle is provided byt he action of hormone.

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Insulin

Adrenaline

Aldosterone

Oxytocin

The sites where nerve impulse is transmitted from the nerve endings to the skeleton muscle cell membranes are the:

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Neucromuscular junctions

Sarcomeres

Myofilaments

Z discs

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