Name two animals showing internal fertilization.
Choose the odd one in each of the following:
(i) Oestrogen; progestrone; testosterone; prolactin
(ii) Ovary; fallopian tube; ureter; uterus.
(iii) Seminiferous tubule; ovum; epididymis; sperm duct; urethra.
(iv) Sperm; implatation; fertilisation; ovum; after birth
Fimbriae funnel in human female is found over
The female is in the reproductive phase between menarche and_________
An ovum is a spherical cell.