(N/A) The reproductive system of an earthworm is hermaphroditic,meaning both male and female reproductive organs are present in the same individual.
$1$. Male Reproductive System: It consists of two pairs of testes present in the $10^{th}$ and $11^{th}$ segments. Two pairs of male genital pores are present on the ventro-lateral side of the $18^{th}$ segment. Prostate glands are present in the $17^{th}-19^{th}$ segments.
$2$. Female Reproductive System: It consists of one pair of ovaries attached at the inter-segmental septum of the $12^{th}$ and $13^{th}$ segments. Ovarian funnels are present beneath the ovaries,which continue into oviducts that join and open on the ventral side as a single median female genital pore on the $14^{th}$ segment.
$3$. Spermathecae: Four pairs of spermathecae are located in the $6^{th}-9^{th}$ segments (one pair in each segment). They receive and store spermatozoa during copulation.