Question # 1

For reuse of renewable resources there are

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Natural cycle

Nutrient cycle

Nitrogen cycle

CO₂ cycle

When two contrasting pairs of traits are followed together in the same cross alleles in each pair are inherited or assorted independently into gamete's is Mendel's principal of

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Law of segregation

Law of independent assortment

Law of dominance

Law of unit character

The structural and functional unit of life is called

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Cytoplasm

Cell

Tissues

Nucleus

Such ciliates that remain attached to a rock or other surface is called

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Motile

Sessile

Both a & b

None

A programmed series of stages from a simpler of more complex forms is

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Development

Growth

All above

None

Which of the following is not an organic compound

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Carbohydrates

Proteins

Lipids

CO₂

Chemically 2ndary cell wall composed of

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Inorganic salts

Silica

Waxes

All of above

In frog the exchange of gases takes place through

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Lungs

Skin

Buccal chamber

All of above

In animal cells, cell membranes helps to take in materials by in folding in the form of vacuole is called

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Endocytosis

Digestion

Ingestion

Lysosomes

The permanent and irreversible increase in size that occurs as an organism mature.

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Embryonic development

Growth

Aging

Just a change

Soil can be defined as

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The upper layer of earth's crust

Lower lager of earth's crust

Collection of natural resources

All above

All carbons in a monosaccharide have a hydroxyl group except

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One carbon

3-carbons

2-carbons

4-carbons

Which of the following phylum have animals show acoelomate

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Platy helminthes

Annelida

Aschelminthes

All of above

Which of the following shapes of bacteria are present

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Cocci

Bacilli

Spiral

All of above

Sporogenesis is the formation of

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Egg

Sperms

Spores

Embryo

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