Question # 1

The byproducts of Photosynthesis is.

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Carbondioxide

Oxygen

Nitrogen

Ammonia

In dihybrid cross the genotypic ratio of F2 generation is:

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1 : 1 ; 1 : 1

1 :3 :1 : 1

1 : 2 : 2 : 1

9 : 3 : 3 : 1

One of the drugs derived from minerals:

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Aspirin

Opium

Iodine Tincture

Streptomycin

These are unit of inheritance :

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Genes

Alleles

Phenotype

Genotype

The simplest method of asexual reproduction is:

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Fragmentation

budding

parthenogenesis

binary fission

Amount of nitrogen in expired air is:

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70%

80%

79%

4%

All Ecosystem of the world join and makes.

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Biosphere

Heterosphere

Geosphere

Hydrosphere

The materials flow forms one trophic level to the next by means of:

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food chains

food webs

energy pyramids

both A and B

Main role to give out air form lungs is;

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Bronchus

Bronchi

Bronchiote

Diaphragm

Which portion of the nervous system that involantry in action:

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Stomatic nervous system

Motor nervous system

Autonomic nervous system

Sensory nervous system

Drug derived from minerals.

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Morphine

Aspirin

Antitoxin

Tuncher iodine

The factor of an ecosystem is:

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light

algae

bacteria

producers

In 1927,................ developed the concept of ecological pyramids.

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Kelvin

Lamark

Charles Elton

Charles Darwin

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