Cu ions released from copper releasing intrauterine devices (IUDs)
A. prevent ovulation
B. make uterus unsuitable for implantation
C. decrease phagocytosis of sperms
D. suppress sperm motility.
Answer:D
Cu ions released from copper releasing intrauterine devices (IUDs)
A. prevent ovulation B. make uterus unsuitable for implantation C. decrease phagocytosis of sperms D. suppress sperm motility.