In human females, each time during maturation and release of
egg the inner wall of uterus thickens. Is this thickening
permanent? Give reasons.
NCERT Class VIII
Science - Exemplar Problems
Chapter 10. Reaching the Age of Adolescence
Answers
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224
No, it is not permanent. During maturation, the uterus prepares itself for development of the baby. If fertilisation doesn't take place, the tissues from uterus are expelled during menstruation.
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Answer:
In human females, during ‘maturation’ and ‘release of egg’ the inner wall of uterus thickens, this thickening is not permanent.
Explanation:
Each cycle of the mensuration harbours the formation of a new egg; this egg continuously develops a thick covering around it. This thickening is to support the zygote that is to be formed inside. If a ‘sperm does not fertilise’ the egg, this thickening sheds and gets released along with the unfertilised egg.
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