Q:Q: What are invertebrate chordates that retain all four defining chordate traits as adults called? Read this paragraph and choose the correct option from the provided answers: Lancelets are invertebrate chordates that retain all four defining chordate traits as adults. There are only about 25 species of living lancelets. Lancelets resemble tunicates in several ways. For example:. Choices: - vertebrates - sporozoans - tunicates - lancelets A:
A:
lancelets