An animal that has these four basic characteristics at some stage of development: notochord; dorsal tubular nerve cord; pharyngeal pouches; and a postanal tail, is best characterized as a(n)Multiple choice question.

A notochord, a dorsal hollow nerve cord, pharyngeal pouches, and a postanal tail are features that are found at some point during the lives of animals calledMultiple choice question.echinoderms.chordates.cephalopods.arthropods.

Select all that applyWhich characteristics are absent in tunicates and lancelets but are present in vertebrates?Multiple select question.Enclosed dorsal nerve cordThree pairs of well developed sensory organsBrain encased in skullA postanal tail

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

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

Members of this phylum are characterized by a dorsal, hollow nerve cord, a notochord, pharyngeal gill slits, and a postanal tail.Multiple choice question.MammaliaEchinodermataChordataAnnelida