Photosynthesis Question 21

21. The principle of limiting factors was proposed by

[1996]

(a) Blackman

(b) Hill

(c) Arnol

(d) Liebig

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Answer : a

Hints & Solution

(a) The principle of limiting factors was formulated by Blackman (1905). It states that when a process is conditioned as to its rapidity by a number of separate factors, the rate of process is limited by the pace of slowest factor.