Multiple ChoiceWhich trait is shared by all vertebrates except cyclostomes at some point in their development?463views
Multiple ChoiceWhich of the following chordates is most likely to look the least like other chordates?561views
Multiple ChoiceWhich of the following are the four key features that characterize all chordates?710views
Multiple ChoiceIn which type of chordate is the spinal cord surrounded by a backbone composed of cartilage or bone?92views
Multiple ChoiceWhich of the following is NOT one of the four key derived characteristics shared by all chordates at some stage of their life cycle?88views
Multiple ChoiceWhich of the following is NOT one of the five key characteristics of chordates?575views
Multiple ChoiceVertebrates are distinguished by the possession of which of the following structures?721views
Multiple ChoiceWhich characteristic is absent in tunicates and lancelets but is present in vertebrates?613views
Multiple ChoiceWhich of the following is a characteristic of all chordates at some point during their life cycle?615views
Multiple ChoiceIf an animal has segments, bilateral symmetry, pharyngeal clefts, a post-anal tail, and deuterostomic development, it must be a member of the __________. 1092views