32. Vertebrates

Which characteristic is absent in tunicates and lancelets but is present in vertebrates?

Which animal can be classified as a tetrapod (a vertebrate lineage characterized by having four limbs or being descended from a four-limbed ancestor)?

Which of the following is NOT a diagnostic feature of the phylum Chordata?

Which of the following is a characteristic of all chordates at some point during their life cycle?

If an animal has segments, bilateral symmetry, pharyngeal clefts, a post-anal tail, and deuterostomic development, it must be a member of the __________.

A __________ is a chordate but not a vertebrate.

Which of the following chordate characteristics contributes most to the formation of your ears?

Which of the following chordate characteristics contributes most to suspension-feeding devices in many invertebrate chordates?

Which of the following pairs is not a correct match?

Which of the following can be found in vertebrates but not in lancelets and tunicates?

A lamprey, a shark, a lizard, and a rabbit share all the following characteristics except __________.

Which of the following is among the earliest known vertebrates?

The operculum was an important adaptation for fish because it helps with __________.

Some sharks are viviparous, which means that __________.

A feature of bony fish not found in sharks is __________.