A) Statement A is true B statement is false.
B) Statement A is false B is true.
C) Both statements A and B are true.
D) Both are false.
Correct Answer: D
Solution :
Metatherian is a group of animals that includes all mammals, which are closely related to marsupials than to placental animals. They contain abdominal pouches, because their young ones are born immature and cannot live without further development in the mother's pouch. Menstruation is a peculiar phenomenon that women go through a monthly cycle of ova production and its fertilisation. Most mammals do not menstruate-they do not cycle their uterine linings, but instead that only build up a thickened endometrium, if fertilisation occurs which looks more efficient.
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