Which statement accurately describes the nature of nematodes?

Nematodes are a highly diverse group of roundworms, with many species having both beneficial and harmful effects on crops. While some nematode species are notorious plant pests that cause significant agricultural damage, others play crucial roles in soil health and ecology. Beneficial nematodes can help control pest populations by preying on harmful insects or by facilitating nutrient recycling in the soil. This dual nature of nematodes is essential for integrated pest management and sustainable agriculture practices. Recognizing that not all nematodes are harmful highlights the importance of identifying species and understanding their specific roles in both the ecosystem and agricultural settings.