Why is urethra in male called as urinogenital duct ?

Urethra in male is called as urinogenital duct. Give reason/Justify.

Urethra is called urinogenital duct.

Why are alkane called paraffins ?

Why male reproductive system is called as urinogenitial system ?

Fill in the blanks by selecting the correct word from the bracket and complete the given paragraph . ( semen, external, placenta,urinogenital duct, oviduct, ovum , internal, sperm,zygote, embryo) "_______" is ejaculated in vagina and passes to uterus and then to "___________" . In humans, fertilization is "________________" . In fertilization, "______________" is formed by fusion of "______________" and ovum and then it undergoes repeated mitotic divisions to form "______________" .

Why is maize grain usually called as a fruit and not a seed?

Why is fructose called levulose?

Why is repsiration called an intracellular process?

Why is auxin called a growth regulator?