Final answer:
Nematodes can reproduce sexually or asexually, with some species having both male and female organs. They can also reproduce through parthenogenesis.
Step-by-step explanation:
Nematodes can reproduce in a variety of ways. They may reproduce sexually or asexually, depending on the species. Some nematodes are monoecious, meaning they have both male and female reproductive organs, while others are dioecious, having separate sexes. Additionally, some nematodes can reproduce asexually through parthenogenesis, where unfertilized eggs develop into offspring.