E-PolyLearning

76. Penicillin is produced by fungal cell as their rate of growth
a. Speeds up
b. Slows down
c. Double
d. Constant
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Answer: (b).Slows down

77. Sewage is normally decomposed by
a. Autotrophic organism
b. Saprophytic micro organism
c. Hetrotrophic organism
d. Decomposed organism
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Answer: (b).Saprophytic micro organism