Online Test

Question # 1

Which of the following group includes organisms all of which are absorptive in their nutrition?

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Protists

Animals

Bacteria

Fungi

The hypotheses, which are often tested and never rejected become

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Laws

Principles

Theories

Results

Characteristics of fungi are .

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Cellular eukaryotes

Lack chlorophyll

Heterotrophic

All of the above

Healthy person's blood should be ____________ from plasmodium.

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Full

Half

Free

None

Which one of the following convert protein to amino acids?

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Protease

Lipase

Both

None

Chemically synthesized urea is a ____________ fertilizer.

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Organic

Inorganic

Both

None

The part of the Earth inhabited by organism's communities is known as

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Habitat

Ecosystem

Biosphere

Jungle

The protein envelope of a bacteriophageis called _____________

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Capsid

Cell wall

Cell membrane

All of above

Find the correct statement.

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Homologous chromosomes form pairs during mitosis

Chromosomes do not duplicate in the interphase preceding meiosis-I

Homologous chromosomes form pairs during mitosis but not mitosis

Spindles are not required during meiosis

Stomata close when the guard cells;

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Lose water

Gain chloride ions

Became turgid

Gain potassium ions

Bioelements which make 99% of the total mass of protoplasm are:

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O,C,H,N,Ca & P

Hg, C, O, H, I, N

P, Mn, Mg, Au, H,O

Sn, Zn, N, Na, I&P

Bacteria and cyanobacteria are :

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Prokaryotes

Eukaryotes

Both

None

The air enters the leaf through __________

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Pits

Stomata

Mesophyll

Xylem vessels

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