Question

Distinguish between seasonal breeders and continuous breeders. Give two examples of each categories to explain the difference.

Answer 1

Seasonal breeders: Those organisms which successfully mate during certain seasons of the year. During those times (which vary from organism to organism), temperature, availability of food and water are optimum and also there is less predators or there is change in behaviour of predators. Females of such category undergoes estrus cycles and remain fertile and receptive to mating. At other times of the year, they remain sexually inactive. Males of such category exhibit changes in physiology.

Examples: Non-primate mammals.

Continuous breeders: Those organisms which can successfully mate and breed through out the year irrespective of the season. Females of such category undergo cyclical changes (menstrual cycle) and males always remain able to copulate.

Example: Primate females.

Answer 2

Answer:

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