Question # 1

Walls of the chest cavity are composed of

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Ribs

Intercostal muscle

Ribs and intercostal muscle

Ribs, intercostal muscle and diaphragm

If more substrate to an already occurring enzymatic reaction is added more enzyme activity is seen because

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There is probably more substrate present than there is enzyme

There is probably more enzyme available than there is substrate

There is probably more product present than either substrate or enzyme

The enzyme substrate complex is probably failing to from during the reaction

Which of the following are being used as bio pesticides.

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Bacteria

Fungi

Virus

Algae

The HIV Virus causes.

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Tuberculosis

Cancer

AIDS

Hepatitis

A quatic arthropods respire through

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Lungs

skin

Gills

Spiracles

The bio element which account for 99% of the total mass in the human's body are .

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Four

Three

Six

Eight

The are ecologically important as bio indicators of air pollution.

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Lichens

Yeast

Viruses

Mycorrhizae

Animals obtain carbohydrates mainly from

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Glucose

Starch

Sucrose

Glycogen

The basic element of organic compound is.

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Nitrogen

Carbon

Hydrogen

Oxygen

End product of an aerobic respiration in yeast.

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Lactic acid

Methyl alcohol

Ethyl alcohol and CO2

Ethyl alcohol only

The unit of life is called.

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Organ

Cell

Tissue

None of these

Which one contains companion cells

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Phloem

Cortex

Xylem

endodermis

Polytrichum is a

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Hornwort

Moss

Clab moss

Liver worts

Poisonous mushrooms are called.

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Truffles

Moreis

Agaricus

Toadstools

The first part of small intestine is called.

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Rectum

Ileum

Jejunum

Duodenum

The left systemic arch disappears in

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Fish

Reptile

Mammals

Birds

Glycolysis is the breakdown of glucose up to the information of.

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Acetic acid

Citric acid

Oxalic acid

Pyruvic acid

Algae in which body is differentiated into blades, stipes, and holdfast belong to

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Golden algae

Diatoms

Kelps

Euglenoids

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