- Sperms fertilize ova in the fallopian tube .
- The ova of earthworms are contained in cocoons .
- Two or more ova are shed during the same heat period .
- By day 11 the ovum begins to attach and implant in the lining of the uterus .
- This desease is spread by the dissemination of viable tapeworm ova from the feces of infected dogs and other definitive hosts .
- the female reproductive cell; the female gamete