431. Cheese is prepared from

A Lactobacillus
B Streptococcus
C Leuconostoc
D Streptococcus and Lactobacillus
Answer :   Streptococcus and Lactobacillus
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432. Gymnosperms are characterized by

A Shape of stem
B Nature of leave
C Naked ovules
D All of the above
Answer :   Naked ovules
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433. According to Eichler cryptogamia includes

A Gymnosperm and Angiosperm
B Thallophyta and Gymnosperm
C Thallophyta, Gryophyta and Pteridophyta
D Only Angiosperm
Answer :   Thallophyta, Gryophyta and Pteridophyta
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434. Practical significance of taxonomy is

A Classification
B To understand diversity
C To understand evolution
D Identification of organism
Answer :   Identification of organism
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435. Which one of the following is a living fossil

A Spirogyra
B Cycas
C Moss
D Saccharomyces
Answer :   Cycas
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436. The terms Magnoliatae, Magnoliaphyta and Liliatae are respectively proposed for

A Angiosperm, dicots and monocots
B Dicots, monocots and Angiosperms
C Dicots, Angiosperms and monocots
D Angiosperms, gymnosperms and ferns
Answer :   Dicots, Angiosperms and monocots
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437. Who proposed the new name for dicots and monocotson the basis of phyllatoxy

A Linneaus
B Oswald Tippo
C Edward Bessey
D Theopharastus
Answer :   Edward Bessey
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438. In 1928, a scientist discovered the first effective antibiotic. Scientist and antibiotics are

A Fleming - streptomycin
B Fleming - pencillin
C Waksman - pencillin
D Waksman - streptomycin
Answer :   Fleming - pencillin
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439. Maintenance of internal favourable conditions despite changes in external environment is

A Enthalpy
B Homoestasis
C Entropy
D Steady state
Answer :   Homoestasis
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440. Glucose concentration of blood for normal body function is

A 0.9 gm/100 ml
B 200 gm/100 ml
C 100 mg/100ml
D 500 mg/100 ml
Answer :   100 mg/100ml
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