Question # 1

Uric acid is produced from metabolism of.

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Nucleic acid

Fetty acid

Carbohydrates

Lipds

Pairing of homologous chromosomes for tetrad formation starts at.

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Leptotene

Zygotene

Diplotene

Pachytene

Dialysis cleans the blood either by

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Passing it through an artificial kidney

Filtering it within abdomen

Removing the whole blood from body

Both a&b

The skeletal muscles are attached with the bones through the.

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Tendon

Ligament

7-Line

Cross bridge

The numebr of cervical vertebrae are.

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7

12

33

32

In ascidian fertilized egg, yellow cytoplasm gives rise to

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Larval epidermis

Muscle cells

Notochord

Gut

Which one of the following is endangered in Pakistan.

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Indian rhino

Indus Dolphin

tiger

Cheer pheasant

Nitrogen waste which is highly toxic and dissolves quickly in body fluids is.

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CO2

Urea

Ammonia

Uric Acid

Excess MSH is secreted in

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Addison's disease

Parkinson's disease

Grave's disease

Alzheimer's disease

In man the vestigial organs are

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Ear muscles

Nictitating membrane

Coccyx

All a,b and c

The most threatened areas on the earth have been reduced to 44% of their original extent are

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Tropical rain forests

Temperate rain forests

Carbiniferous forests

Deciduous rain forests

Urea is produced in

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Lungs

Liver

Kidney

Pancreas

Menstruation usually lasts for

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3 - 7 days

2 - 5 days

1 - 3 days

5 - 7 days

Which one is an example of Xerophytes.

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Brassica

Rose

Cactus

Mango

The simplest form of learning behaviour is

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Imprinting

Habituation

Latent learning

Insight learning

Shape of the plant cell does not change greatly compared with an animal cell because it is surrounded by a rigid

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Cell membrane

Capsule

Sheath

Cell wall

The living cells of cartilage are called

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Cridocytes

chondrocytes

Blastocysts

Nematocytes

Similarity in characteristics resulting from common ancestry is known as:

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Analogy

Homology

Evolutionary relationship

Phylogeny

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