Read the graph given above and correlate the uterine events that take place according to the hormonal levels on
(i) 6 - 15 days
(ii) 16 - 25 days
(iii) 26 - 28 days (if the ovum is not fertilised )
(b) Specify the sources of the hormones mentioned in the graph.

Study the garaph carefully and correlate the hormone levels on (i) 1-5 days (ii). 12-14 days (iii). 25-28 days (if the ovum is not fertilised)

Study the garaph carefully and correlate the hormone levels on (i) 1-5 days (ii). 12-14 days (iii). 25-28 days (if the ovum is not fertilised)

Study the garaph carefully and correlate the hormone levels on (i) 1-5 days (ii). 12-14 days (iii). 25-28 days (if the ovum is not fertilised)

Study the graph given below related with menstrual cycle in females: a. Identify ovarian hormones X and Y mentioned in the graph and specify their source. Corelate and describe the uterine events that take place according to the ovarian hormone levels X and Y mentioned in the graph on - i. 6 – 15 days ii. 16 – 25 days iii. 26 – 28 days (when ovum is not fertilized)

Study the graph given below related to menstrual cycle in Females: Correlate and describe the uterine events that take place according to the ovarian hormone levels X and Y mentioned in the graph during 6-15 dats 16-25 days 26-28 days (when ovum is not fertilised)

(a) The diagram given below is that of a developing human foetus in the womb. Study the same and then answer the questions that follow : (i) Name the parts '1' and '5' indicated by guidelines. (ii) What term is given to the period of development of the foetus in the womb ? (iii) How many days does the foetus take to be fully developed ? (iv) Mention two functions of the part labelled 2 other than its endocrine function. (v) Name the hormone (any one) produce by the part labelled 2 (vi) What is the function of the part marked 3 ? (b) Give the exact location of amnion. [ICSE 2011, 2014]