what are periods in mensurational cycle
Answers
Answer:
this is your clear answer
Answer:
The average menstrual cycle = 28 days .
In adults menstrual cycle can range anywhere from 21 to 35 days and
In young teens menstrual cycle can range anywhere from 21 to 45 days.
Explanation:
During fertilisation, the nuclei of the sperm and the ovum fuse together to form a single nucleus. This results in the formation of the fertilised egg or zygote. The formation of the zygote marks the beginning of an individual. If the ovum is not fertilised by a sperm, it is expelled from the uterus along with some uterine muscles and blood. This is known as menstruation.
The zygote has the chromosomes and genes from both mother and father. Thus, the new individual inherits characteristics from both mother and father. These characteristics may include colour of the eyes, hair, skin, height, shape of the face, etc. from mother or father or a mixture of both.
