Explain LH surge.

Explain NOT gate

some important events that occur during the menstrual cycle are given below. Arrange the events in a proper sequence and select the corrrect option. (i). Proliferation of endometrial wall (ii). LH surge (iii). Secretion of estrogen (iv). Secretion of progesterone (v). Ovulation (vi). Growth of corpus luteum (vii). Degeneration of corpus luteum (viii). menstruation

Explain STD?

Explain how glue works?

Explain the use of anthrax in biowar.

Explain the sound of heart beat?

Explain in brief reflex action.

Explain isotropy.

Read the following statements about menstrual cycle and select two correct statements: (i). Lack of menstruation may be indicative of pregnance (ii). The changes in the ovary and the uterus are induced by changes in the lveles of ovarian hormones only (iii). LH surge induces ovulation (iv). If fertilisation occurs, corpus luteum degenerates immediately