Question

No two species, however closely related cannot occupy same niche. This law is called as

• A. Gauss's Law
• B. Allen's rule
  
• C. Bergmann's rule
• D. None of the above

Answer 1

The correct option is A Gauss's Law

The Gause's law of competitive exclusion is a proposition, states that two species competing for the same resource cannot coexist at constant population values, if other ecological factors remain constant. When one species has even the slightest advantage or edge over another then the one with the advantage will dominate in the long term. One of the two competitors will always overcome the other, leading to either the extinction of this competitor or an evolutionary or behavioural shift toward a different ecological niche.

So, the correct answer is option A.