Which Group of Invertebrates is Most Closely Related to Vertebrates? The Surprising Answer
Vertebrates are animals that have a backbone or spinal column, such as mammals, birds, reptiles, amphibians, and fish. They belong to the subphylum Vertebrata, which is part of the phylum Chordata. Chordates are animals that have a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail at some point in their development. … Read more