A) one menses each month
B) one evularion each month
C) one egg
D) one breeding season in the year
Correct Answer: D
Solution :
Oestrus cycle consists of a few days of oestrus or heat followed by a few days of anoestrus or quiescence. Mono-oestrus animals are those animals, in which only one oestrus cycle is present, ie, one breeding season in one year, eg, rabbit, dog, fox, bat, deer etc. Poly-oestrus animals are those animals, in which many oestrus cycles are found in the breeding season, eg, rats, cow, sheeps, squirrels etc.
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