The flow of blood along with endometrium cells of uterus and mucus through vagina is called menstruation. It is also called as menses, periods, chumps etc. It occurs around a regular interval of 28 days. Cyclic menstruation is an indicator of normal reproductive phase and extends between menarche and menopause. MENARCHE Onset of menstruation is […]
MARKING SCHEME OF BIOLOGY CLASS XII
For all biology students it’s a challenge to score 100% marks on theory. So, for achieving the same one should know each and every terms of biology mentioned in NCERT books. Here is a small attempt to help students to utilise their time in preparation of CBSE examination so as to produce fruitful result.