ANN-0024
QUESTION
The no. of Protozoa present in one millilitre of rumen liquor is?
OPTIONS
(A) 106-7
(B) 102-4
(C) 1016-17
(D) 109-10
ANSWER
(A) 106-7
EXPLANATION
Rumen liquor contains a very large protozoal population, commonly on the order of 10^6–10^7 protozoa per millilitre. The ranges 10^2–10^4 and 10^9–10^10 do not represent the conventional estimate, and 10^16–10^17 is far beyond a biologically realistic rumen protozoal concentration.
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