401.
Diatomacesous earth is used as heat insulator in boilers and steam pipes because the cell wall of diatom
A
Composed of Iron
B
Composed of Silocon dioxide
C
In conductor of heat
D
Is bad conductor of electricity
Answer :
Composed of Silocon dioxide
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402.
Cyanobacteria is an
A
Algae having blue-green pigment
B
Algae having red pigment
C
Algae having brown pigment
D
Algae having yellow-brown pigment
Answer :
Algae having blue-green pigment
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403.
Walking fern name of Adiantum is due to
A
Dispersal by animals
B
Reproduction by spores
C
Vegetative reproduction
D
Power of locomotion
Answer :
Vegetative reproduction
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404.
Phenetic classification of organisms is based on
A
Sexual characteristics
B
Observable characteristics of existing organism
C
The ancestral lineae of existing organism
D
Dendogram based on DNA characteristics
Answer :
Observable characteristics of existing organism
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405.
Which fungal disease spreads by seeds and flowers
A
Loose smut of Wheat
B
Corn stunt
C
Covered smut of Barley
D
Soft rot of Potato
Answer :
Loose smut of Wheat
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406.
Which of the following amino acid is present only in bacteria and BGA
A
Glutametic acid
B
Diaminopimelic acid
C
Glycine
D
Tyrosine
Answer :
Diaminopimelic acid
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407.
The book genera plantarum which contains the classification of seed plants was wrote by
A
Linnaeus
B
De jussieu
C
Bentham and Hooker
D
Eichler
Answer :
Bentham and Hooker
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408.
Smallest prokaryote is
A
Mycoplasma
B
Eubacteria
C
BGA/Cyanobacteria
D
Bacteria
Answer :
Mycoplasma
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409.
The term taxon refers to
A
Name of a species
B
Name genus
C
Name of family
D
A taxonomic group of any rank
Answer :
A taxonomic group of any rank
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410.
The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for
A
interaction with the environment and progressive evolution
B
reproduction
C
growth and movement
D
responsiveness to touch
Answer :
reproduction
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There are several factors and processes which differentiate living beings from non-living things like reproduction, respiration, growth e.t.c. But among them, reproduction is the only difference, which differentiates living beings from no-living things without any exception.