During early stages of vertebrate embryo development, the embryos look____ During late stages of vertebrate embryo development, the embryos look _____ but still have ____ in common.
During early stages of vertebrate embryo development, the embryos look similar regardless of the species. During late stages of vertebrate embryo development, the embryos look more distinctive based on their species, but they still have common features such as basic body structure and organ systems.
