First, we need to know about the IUD. An intrauterine device (IUD) also called an intrauterine contraceptive device or small coil is mostly a T-shaped birth control gadget that is injected into the uterus to control pregnancy. IUDs are LARC (long-acting reversible birth control). Research gives the information that female family planning givers select the LARC process usually (41.6%) more than the normal public (12.1%). Among all the birth control processes, IUDs, besides contraceptive implants, are the most acceptable by users.
Now, the answer is:
Lippes loop is IUD impregnated which includes barium sulfate.
Copper-eliminating IUDs, like CuT, Cu7, Multiload 375, etc, secrete copper that inhibits sperm movement which ultimately decreases its fertilizing capability.
LNG-20 is IUD that excretes levonorgestrel (LNG), causes endometrial atrophy, and alters the stroma to inhibit implantation. It also boosts sperm phagocytosis in the uterus.
Thus, the correct option is A: LNG-20.
The hormone-releasing IUDs are LNG-20. It acts as a contraceptive by making the cervix hostile to sperm and the uterus unsuitable for implantation.
IUD - Intra Uterine Devices
Contraceptive - Ptrvrnts pregnancy.
Hormone: Progestesert and LNG-20
Make the uterus unsuitable for implantation.
Make the cervix hostile to the sperm.
The correct option will be (A) LNG -20.
Student to attempt either option-(A) or (B):
(A) Study the given diagram showing the sectional view of a seminiferous tubule.
Answer the following questions:
OR
(B) Study the figures given below showing initial stages in the formation of female gametophyte and answer the questions that follow.
AB is a part of an electrical circuit (see figure). The potential difference \(V_A - V_B\), at the instant when current \(i = 2\) A and is increasing at a rate of 1 amp/second is:
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