Question # 1

Which of the following is not an attribute of population.

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Population density

Gene frequency

Gene structure

Gene flow

How many molecule of oxygen can bind with a molecule of myoglobin.

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4

3

1

2

Open circulatory system is present in.

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Man

Leach

Earth work

Cockroach

Which of the following vertebrates posses single circuit heart.

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Reptiles

Birds

Mammals

Fishes

Which one belongs to actinospores.

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Trypanosoma

Plasmodium

Vorticella

Radiolarians

Livorworts belong to the subdivision.

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Hepaticopside

Anthoceropsida

Lichens

Bryopsida

Gastric secretion is inhibited by

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Bile

Gastrin

Pancreatic juice

Secretin

Influenza viruses are.

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DNA Naked

DNA enveloped

RNA enveloped

RNA naked

Spirochete is a bacterium.

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Aerobic

Anaerobic

Facultative

Microaerophilic

All 'Flat worms' belong to phylum

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Annelida

Platyhelminthes

Nematoda

Arthropoda

Acetic acid on entering the mitochondrion unites with co enzyme A to form

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Active acetate

Furnarate

Pyruvic acid

Alpha ketoglutarate

The primary structure for eliminating waste products in man are

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Liver

Kidneys

Stomach

Both a & b

Selective weed killer

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2-4 D

I AA

NAA

IPA

Two parents, each of blood groups A, have a daughter of blood group O. what is the probality that their next child who has blood gorup O?

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0.125

0.25

0.50

0.75

The uterine layer which is shed with each monthly cycle is:

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Endometrium

Perimetrium

Tunica albuginea

Myometrium

In test cross, heterozygous produces.

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All round

50,50

All wrinkle

None of these

Which one is not a bone of axial skeleton

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Ribs

Sternum

Pelvic

Cranium

The best way to increase food production from ecosystem view point is:

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To increase cultivable land by clearing forest

Use of excessive fertilizers

Use of high quality pesticides

Use of genetically improved varieties of seeds

The fishes which drink large amount of sea water and excrete concentrated urine are.

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Cartilaginous fishes

Bony fishes

Lung fishes

Jawless fishes

Earthworm is the ideal example of tubular excretory system called

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Protonephridia

Mesonephridia

Metanephridia

Prenephridia

___ are indole acetic acid or its variants.

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auxins

Gibberellins

Cytokinine

Ethene

Plantigrade mode of Locomotion is.

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Monkey

Rabbit

Goat

Rodents

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