Chordates have a Blank______ that develops down the length of an embryo that allows for muscle attachment.Multiple choice question.notochordflexible rodbackbone

What is a flexible rod that extends along the length of a chordate's back and that is replaced by the backbone in vertebrate development?Multiple choice question.notochordmantlecraniumring canal

In chordates called vertebrates, the notochord is replaced by the ______ during development.Multiple choice question.spinal cordbackbonelong nerves of the back and legscranium

At some point in their life cycle, all chordates have a postanal tail, ______, hollow nerve cord, and ______.Multiple choice question.pharyngeal slits or pouches; endoskeleton made of bone or cartilagelungs; notochordnotochord; pharyngeal slits or pouchesendoskeleton made of bone or cartilage; lungs

All chordate embryos have a tail that is described asMultiple choice question.preanal.postanal.anterior.

WarningDue in less than 8 hoursMultiple Choice QuestionIn a typical chordate embryo, the notochord lies _________ to the dorsal tubular nerve cord, and runs ________ to it.Multiple choice question.ventral; paralleldorsal; perpendiculardorsal; parallelventral; perpendicul