441.
Binomial nomenclature consists of two words
A
Genus and species
B
Order and family
C
Family and genus
D
Species and variety
Answer :
Genus and species
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Binomial nomenclature consists of two words–genus and species. First word denotes genus name and second word denotes species name.
442.
Food can be easily preserved at low temperature because at low temperature
A
The food can easily be digested
B
The food can easily be cooked
C
The bacterial attack on food is minimised
D
All of the above
Answer :
The bacterial attack on food is minimised
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443.
What is formed by the germination of spores of moss
A
Leafy gametophyte
B
Stem
C
Protonema
D
Rhizoides
Answer :
Protonema
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444.
The medicine of the cancer "Taxol" is obtain from the bark of which plant
A
Taxus
B
Ephedra
C
Cycas
D
Picea
Answer :
Taxus
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445.
Invagination of Plasma - membrane in Bacterial cell are known as
A
Mesosome
B
Episome
C
Acrosome
D
Spherosome
Answer :
Mesosome
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446.
The genetic material of procaryotic cells is called
A
Nucleus
B
Nucleolus
C
Nucleoid
D
Centrosome
Answer :
Nucleoid
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447.
Dendrochronology is the
A
Study of seasonal activity of cambium
B
Determination of the nature of annual rings
C
Study to seasonal behaviour of plants govermed by endogenous rhythm
D
Determination of age of the tree by counting annual rings
Answer :
Determination of age of the tree by counting annual rings
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448.
What is true for Archaebacteria
A
All Halophils
B
All photosynthetic
C
All fossils
D
Odest living begins
Answer :
Odest living begins
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449.
Sweating is meant for
A
Killing of skin bacteria
B
Regulation of body temperature
C
Removal of excess salt
D
Removal of excess water
Answer :
Regulation of body temperature
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450.
Which of the following yields citric acid
A
Penicilliumcitricum
B
Aspergillusniger
C
Saccharomyces
D
Azospirilium
Answer :
Aspergillusniger
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