Do you think he exists? I believe he does.
If my memory serves me well, the most suitable from given above is:
a) testes → epididymis → vas deferens → urethra
Sex linkage. ... In mammals, the female is homogametic, with two X chromosomes (XX), while the male is the heterogametic sex, with one X and one Y chromosome (XY). Genes on the X or Y chromosome are called sex-linked.
It is an indicator of poor air quality from air pollution. This pollution is most often ozone or particulates. Typically it indicates that the air is unhealthy for children, the elderly, and sensitive groups.