How do intrauterine devices present conception is humans.

How do intrauterine devices prevent conception in humans?

Briefly give an account of various intra uterine devices. How do they function? What is their advantage?

How do atoms exist ?

The type of lens present in the human eye is

Name the largest cell present in the human body.

Consider the statements given below regarding contraception and answer is directed thereafter (a) medical termination of pregnancy (MTP) during first trimester is generally safe (b). Genearlly chances of conception are nil until mother breast feeds the infant upto two years (c). Intrauterine devices like copper-T are effective contraceptives (d). Contraception pills may be taken upto one week after coitus to prevent conceptions Which two of the above statements are correct?

What is contraception Briefly explain two barrier methods and two surgical methods to present conception.