Vertebrates are distinguished by the presence of aMultiple choice question.postanal tail.exoskeleton made of bone.vertebral column, or backbone.dorsal nerve cord.

A vertebrate is an animal thatMultiple Choicehas a cranium but lacks a vertebral column.does not have a backbone.has a vertebral column.has an incomplete digestive tract.does not have true tissues.

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

Animals that have ______ are called vertebrates, and those without are called invertebrates.Multiple choice question.deuterostome developmenta dorsal nerve cordnotochordsbackbones

Unique features of vertebrates include the presence of a(n) ______.Group of answer choicesendoskeletonnotochordtrue coelomskull and backbonepharyngeal slit

When comparing the vertebral column of mammals with that of reptiles, what two traits unique to mammals are apparent?Multiple select question.vertebral column is straightvertebral column is arched or curvedspines of vertebrae project into the internal cavityvertebrae are highly differentiated