Step 1: Understanding the Concept:
Family planning involves the use of contraceptive methods to control the number of children a couple has and the intervals between their births. The question asks to identify which of the given options are effective contraceptive measures.
Step 2: Detailed Explanation:
The options represent different types of contraceptive methods:
\[\begin{array}{rl} \bullet & \text{Diaphragm: This is a barrier method of contraception. It is a dome-shaped cup that is inserted into the vagina before sex to cover the cervix and block sperm from entering the uterus. } \\ \bullet & \text{Condom: This is also a barrier method. It is a thin sheath, typically made of latex, worn over the penis during sex to prevent semen from entering the vagina. It also protects against sexually transmitted infections (STIs). } \\ \bullet & \text{Copper T and loop: These are types of Intrauterine Devices (IUDs). They are small T-shaped or loop-shaped devices inserted into the uterus by a healthcare professional. They work by preventing fertilization or implantation. } \\ \end{array}\]
Since all three options are recognized and effective methods of contraception used in family planning, the correct choice is "All of these".
Step 3: Final Answer:
Diaphragm, Condom, and Copper T/loop are all effective measures used in family planning.
Arrange the following events in the correct order pertaining to fertilization in the human reproductive system.
(A) The blastocyst becomes embedded in the endometrium.
(B) Finger-like projections appear on the trophoblast called chorionic villi.
(C) The blastomeres are arranged into trophoblast and the inner cell mass.
(D) The zygote divides mitotically and transforms into an embryo with 8-16 blastomeres, called a morula.
Study the graphs given below for Case 1 and Case 2 showing different levels of certain hormones and answer the question that follows:

(a) Which hormone is responsible for the peak observed in Case 1 and Case 2? Write one function of that hormone.
(b) Write changes that take place in the ovary and uterus during follicular phase.
Student to attempt either sub-part (c) or (d):
(c) Name the hormone Q of Case 2. Write one function of hormone Q.
OR
(d) Which structure in the ovary will remain functional in Case 2? How is it formed?
Match the following items of Column-I with that of Column-II: