Identify the incorrect statement regarding surgical birth control methods:
| 1. | They are also called as "sterilization" procedures |
| 2. | In males, vasectomy and in females, tubectomy is advised |
| 3. | They are terminal methods to prevent any more pregnancies |
| 4. | These methods are hugely popular all over the world |
Birth control pills contain synthetic estrogen and progesterone. How might these hormones prevent pregnancy?
| 1. | They cause the corpus luteum to degenerate. |
| 2. | They keep the pituitary from secreting FSH and LH, so ovulation does not occur. |
| 3. | They cause the lining of the uterus to be sloughed off. |
| 4. | They trigger premature ovulation, before an egg is mature. |