According to Chittay (1960), most of the animal populations have self-regulation mechanism to check their population controlled by some intrinsic factors, such characteristic examples are shown by

Lemmings (rodents) after every 4 years by mass suicides

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Anadromous migration of eels and salmons

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Both A and B

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None of the above

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Solution

The correct option is C Both A and B
Intrinsic factors for population control are self-regulatory mechanisms that involve the population's ability to respond to its own density and make necessary adjustments. These include intraspecific competition, territoriality , metabolic demand and migratory behaviour. Thus, the correct answer is option C.

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