What is the term used to describe a young nematode?

The term "juvenile" is specifically used to describe a young nematode. In nematology, the life cycle of nematodes often includes several stages, with the juvenile stage being a key phase where the organism has not yet reached maturity but has developed beyond the egg stage. This juvenile stage is essential for understanding nematode development, behavior, and management in agricultural contexts.

The other terms refer to different life stages or types of organisms. For instance, "nymph" typically refers to the immature form of certain insects that undergo incomplete metamorphosis, while "larva" is used for the young form of insects that undergo complete metamorphosis. "Pupa" refers to the stage in an insect's life cycle where it undergoes transformation into its adult form. Therefore, in the context of nematodes, "juvenile" is the most accurate term to denote their young stage of development.