Combined Oral contraceptives prevent pregnancy by

A. Tubal block

B. Preventing spermatogenesis

C. Forming a barrier between the ovum and sperm

D. Suppressing ovulation

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. Increase in basal body temperature in the middle of menstrual cycle is a sign of
  2. Acrosome occurs in the sperm in
  3. Part of sperm that passes into ovum is
  4. Total numbers of ovum released in the life time of a woman is approximately
  5. After fertilization, implantation of human embryo takes place on
  6. Which one is not the function of human placenta
  7. Cell division that occurs in zygote is called
  8. Sickle cell anaemia induce to
  9. Which part of the ovary act as an endocrine gland in human beings
  10. Medical termination of pregnancy is safe till how many weeks of pregnancy?
  11. In uterus, endometrium proliferates in response to ...
  12. What are the chances of a normal fertile couple having a baby in one year?
  13. Thick layer which surrounds the ovum is ...
  14. The hormone responsible for enlargement of mammary glands at puberty is
  15. An abnormal human male phenotype involving an extra x-chromosome (xxy) is found in....
  16. Corona radiata is held by...
  17. The embryonic stage that resembles a mulberry fruit is
  18. Approximately how long does it take for a spermatocyte to complete its differentiation into a spermatozoan…
  19. Which of the following statements is most correct about the human menstrual cycle.
  20. Prostate gland produces a secretion for ...
  21. A marriage between man with normal vision and colour blind woman will give birth to
  22. Epididymis is ...
  23. Level of estrogen and progesterone are minimum at the time of
  24. Fertilization of the ovum takes place in
  25. Membrane that gives protection to embryo from external shocks is
  26. Part of fallopian tube closest to ovary is
  27. Cryptorchidism is ...
  28. Which one takes part in formation of placenta? ...
  29. Albinism is a congenital disorder resulting from the lack of which enzyme?
  30. The surgical method of contraception in males