Menarche, or the first menstruation, is a sign of sexual maturity. It may take days, weeks, or years for most multicellular creatures to grow sufficiently to be able to reproduce sexually.
An organism's capacity for reproduction indicates its sexual maturity. In menstruation human beings, it may be regarded as a synonym for adulthood, however in this case, puberty refers to the biological process of sexual maturity, whereas adulthood is dependent on cultural reproduce reproduce meanings.
It may take days, weeks, or years for most multicellular creatures to grow reproduce sufficiently to be able to reproduce sexually, whether at birth (in the case of mammals) or germination (in the case of plants). A body may also become menstruation sexually mature as a result of specific indications. They could be external—like drought, which affects some reproduce plants—or internal—like body fat percentage (certain animals).
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