Given the question: Answer the following question given this paragraph: Roundworms are invertebrates in Phylum Nematoda. Roundworms have a pseudocoelom and complete digestive system. They are free-living heterotrophs or parasites. Q: Roundworms are intervertebrates that belong to which phylum? Choices: - annelida - Gordiacea - amoebozoa - nematoda A:
The answer is:
nematoda