Question # 1

Cytokineses in a plant cell is characterized by:

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The equal division of homologous chromosomes

A pinching off a cell membrane to divide the cell

The formation of a cell plate in the cytoplasm

The movement of the chromosomes from the metaphase plate

Forests are the source of:

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Drugs

Fuel

Timber

All of these

The connection between stomach & esophagus is called ............. sphincter.

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Cardiac

Muscular

Both

None

RNA, ribosomes and enzyme are synthesized during .............. .

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G2-phase

S-phase

G1-phase

Inretphase

The _________ is a major component of plant cell walls.

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Chitin

Peptiodglycan

Cellulose

Cholesterol

Find the correct path of blood circulation.

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Left atrium, left ventricle, lungs, right atrium, right ventricle, body

Right atrium, right ventricle, lungs, left atrium, left ventricle ,body

Left atrium, left ventricle, right atrium, right ventricle, lungs body

Right atrium, lungs, right ventricle, left atrium, body , left ventricle

The cells used for secretion of hormones are:

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Muscles cells

Nerve cells

Grand cells

RBCs

Cellular organization is absent in:

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Viruses

Bacteria

Algae

Protozoans

Malaria is from ____________ word Mala means bad and aria means air.

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Italian

English

German

Swedish

What is greatest threat to biodiversity on this planet?

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Habitat loss

Deforestation

Overpopulation

B and C

What would be the best experimental design for testing a hypothesis that bean plants require sodium?

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Measure the amount of sodium in a few bean plants

Grow bean plants with and without sodium

Look for sodium in leaf tissues

Analyze root contents for sodium

Phenomenon of crossing over in fruit fly was observed by:

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T.H. Morgan

W.Flemming

Oscar Hertwig

Louis pasteur

The class of man is:

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Insecta

Mammalia

Magnoliopsida

Proteobacteria

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